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Finding the Fourth Proportional to 485,030.20, 727,545.30 and 485,030.20

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Solution

The fourth proportional to 485,030.20, 727,545.30 and 485,030.20 is: 727,545.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,030.20 : 727,545.30 = 485,030.20 : x
  2. Step 2: Convert to fraction form
    485,030.20/727,545.30 = 485,030.20/x
  3. Step 3: Cross multiply
    485,030.20x = 727,545.30 × 485,030.20
  4. Step 4: Simplify right side
    485,030.20x = 352,881,442,368.06
  5. Step 5: Solve for x
    x = 352,881,442,368.06/485,030.20
  6. Step 6: Final answer
    x = 727,545.30

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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.