Home / 728,442.14-1,092,978.63-391,089.17

Finding the Fourth Proportional to 728,442.14, 1,092,978.63 and 391,089.17

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Solution

The fourth proportional to 728,442.14, 1,092,978.63 and 391,089.17 is: 586,803.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,442.14 : 1,092,978.63 = 391,089.17 : x
  2. Step 2: Convert to fraction form
    728,442.14/1,092,978.63 = 391,089.17/x
  3. Step 3: Cross multiply
    728,442.14x = 1,092,978.63 × 391,089.17
  4. Step 4: Simplify right side
    728,442.14x = 427,452,099,769.54
  5. Step 5: Solve for x
    x = 427,452,099,769.54/728,442.14
  6. Step 6: Final answer
    x = 586,803.10

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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.