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Finding the Fourth Proportional to 497,677.60, 746,516.40 and 339,047.20

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Solution

The fourth proportional to 497,677.60, 746,516.40 and 339,047.20 is: 508,570.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,677.60 : 746,516.40 = 339,047.20 : x
  2. Step 2: Convert to fraction form
    497,677.60/746,516.40 = 339,047.20/x
  3. Step 3: Cross multiply
    497,677.60x = 746,516.40 × 339,047.20
  4. Step 4: Simplify right side
    497,677.60x = 253,104,295,174.08
  5. Step 5: Solve for x
    x = 253,104,295,174.08/497,677.60
  6. Step 6: Final answer
    x = 508,570.80

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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.