Home / 651,632.20-977,448.30-402,800.20

Finding the Fourth Proportional to 651,632.20, 977,448.30 and 402,800.20

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Solution

The fourth proportional to 651,632.20, 977,448.30 and 402,800.20 is: 604,200.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,632.20 : 977,448.30 = 402,800.20 : x
  2. Step 2: Convert to fraction form
    651,632.20/977,448.30 = 402,800.20/x
  3. Step 3: Cross multiply
    651,632.20x = 977,448.30 × 402,800.20
  4. Step 4: Simplify right side
    651,632.20x = 393,716,370,729.66
  5. Step 5: Solve for x
    x = 393,716,370,729.66/651,632.20
  6. Step 6: Final answer
    x = 604,200.30

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Half scale
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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.