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Finding the Fourth Proportional to 486,654.93, 730,114.02 and 439,809.39

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Solution

The fourth proportional to 486,654.93, 730,114.02 and 439,809.39 is: 659,833.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,654.93 : 730,114.02 = 439,809.39 : x
  2. Step 2: Convert to fraction form
    486,654.93/730,114.02 = 439,809.39/x
  3. Step 3: Cross multiply
    486,654.93x = 730,114.02 × 439,809.39
  4. Step 4: Simplify right side
    486,654.93x = 321,111,001,766.65
  5. Step 5: Solve for x
    x = 321,111,001,766.65/486,654.93
  6. Step 6: Final answer
    x = 659,833.04

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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.