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Finding the Fourth Proportional to 535,489.10, 804,545.85 and 402,628.85

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Solution

The fourth proportional to 535,489.10, 804,545.85 and 402,628.85 is: 604,929.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,489.10 : 804,545.85 = 402,628.85 : x
  2. Step 2: Convert to fraction form
    535,489.10/804,545.85 = 402,628.85/x
  3. Step 3: Cross multiply
    535,489.10x = 804,545.85 × 402,628.85
  4. Step 4: Simplify right side
    535,489.10x = 323,933,370,357.77
  5. Step 5: Solve for x
    x = 323,933,370,357.77/535,489.10
  6. Step 6: Final answer
    x = 604,929.90

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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.