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Finding the Fourth Proportional to 525,234.30, 787,851.45 and 472,090.20

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Solution

The fourth proportional to 525,234.30, 787,851.45 and 472,090.20 is: 708,135.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,234.30 : 787,851.45 = 472,090.20 : x
  2. Step 2: Convert to fraction form
    525,234.30/787,851.45 = 472,090.20/x
  3. Step 3: Cross multiply
    525,234.30x = 787,851.45 × 472,090.20
  4. Step 4: Simplify right side
    525,234.30x = 371,936,948,600.79
  5. Step 5: Solve for x
    x = 371,936,948,600.79/525,234.30
  6. Step 6: Final answer
    x = 708,135.30

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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.