Home / 487,666.04-731,347.79-172,049.13

Finding the Fourth Proportional to 487,666.04, 731,347.79 and 172,049.13

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Solution

The fourth proportional to 487,666.04, 731,347.79 and 172,049.13 is: 258,020.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,666.04 : 731,347.79 = 172,049.13 : x
  2. Step 2: Convert to fraction form
    487,666.04/731,347.79 = 172,049.13/x
  3. Step 3: Cross multiply
    487,666.04x = 731,347.79 × 172,049.13
  4. Step 4: Simplify right side
    487,666.04x = 125,827,750,136.68
  5. Step 5: Solve for x
    x = 125,827,750,136.68/487,666.04
  6. Step 6: Final answer
    x = 258,020.33

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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.