Home / 745,046.30-1,028,185.83-527,643.92

Finding the Fourth Proportional to 745,046.30, 1,028,185.83 and 527,643.92

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Solution

The fourth proportional to 745,046.30, 1,028,185.83 and 527,643.92 is: 728,164.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,046.30 : 1,028,185.83 = 527,643.92 : x
  2. Step 2: Convert to fraction form
    745,046.30/1,028,185.83 = 527,643.92/x
  3. Step 3: Cross multiply
    745,046.30x = 1,028,185.83 × 527,643.92
  4. Step 4: Simplify right side
    745,046.30x = 542,515,996,688.73
  5. Step 5: Solve for x
    x = 542,515,996,688.73/745,046.30
  6. Step 6: Final answer
    x = 728,164.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.