Home / 648,150.80-972,226.20-490,686.80

Finding the Fourth Proportional to 648,150.80, 972,226.20 and 490,686.80

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Solution

The fourth proportional to 648,150.80, 972,226.20 and 490,686.80 is: 736,030.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,150.80 : 972,226.20 = 490,686.80 : x
  2. Step 2: Convert to fraction form
    648,150.80/972,226.20 = 490,686.80/x
  3. Step 3: Cross multiply
    648,150.80x = 972,226.20 × 490,686.80
  4. Step 4: Simplify right side
    648,150.80x = 477,058,562,954.16
  5. Step 5: Solve for x
    x = 477,058,562,954.16/648,150.80
  6. Step 6: Final answer
    x = 736,030.20

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Double scale
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Similar ratio
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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.