Home / 728,124.67-1,092,186.05-338,592.43

Finding the Fourth Proportional to 728,124.67, 1,092,186.05 and 338,592.43

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Solution

The fourth proportional to 728,124.67, 1,092,186.05 and 338,592.43 is: 507,888.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,124.67 : 1,092,186.05 = 338,592.43 : x
  2. Step 2: Convert to fraction form
    728,124.67/1,092,186.05 = 338,592.43/x
  3. Step 3: Cross multiply
    728,124.67x = 1,092,186.05 × 338,592.43
  4. Step 4: Simplify right side
    728,124.67x = 369,805,926,988.64
  5. Step 5: Solve for x
    x = 369,805,926,988.64/728,124.67
  6. Step 6: Final answer
    x = 507,888.20

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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.