Home / 648,052.20-972,078.30-648,052.20

Finding the Fourth Proportional to 648,052.20, 972,078.30 and 648,052.20

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Solution

The fourth proportional to 648,052.20, 972,078.30 and 648,052.20 is: 972,078.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,052.20 : 972,078.30 = 648,052.20 : x
  2. Step 2: Convert to fraction form
    648,052.20/972,078.30 = 648,052.20/x
  3. Step 3: Cross multiply
    648,052.20x = 972,078.30 × 648,052.20
  4. Step 4: Simplify right side
    648,052.20x = 629,957,480,887.26
  5. Step 5: Solve for x
    x = 629,957,480,887.26/648,052.20
  6. Step 6: Final answer
    x = 972,078.30

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Half scale
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Double scale
Find fourth proportional to 648,053.20, 972,079.80 and 648,053.20
Similar ratio
Find fourth proportional to 972,078.30, 1,458,117.45 and 972,078.30
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.