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Finding the Fourth Proportional to 488,059.80, 732,089.70 and 429,010.80

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Solution

The fourth proportional to 488,059.80, 732,089.70 and 429,010.80 is: 643,516.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,059.80 : 732,089.70 = 429,010.80 : x
  2. Step 2: Convert to fraction form
    488,059.80/732,089.70 = 429,010.80/x
  3. Step 3: Cross multiply
    488,059.80x = 732,089.70 × 429,010.80
  4. Step 4: Simplify right side
    488,059.80x = 314,074,387,868.76
  5. Step 5: Solve for x
    x = 314,074,387,868.76/488,059.80
  6. Step 6: Final answer
    x = 643,516.20

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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.