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Finding the Fourth Proportional to 649,488.87, 896,279.13 and 363,035.61

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Solution

The fourth proportional to 649,488.87, 896,279.13 and 363,035.61 is: 500,980.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,488.87 : 896,279.13 = 363,035.61 : x
  2. Step 2: Convert to fraction form
    649,488.87/896,279.13 = 363,035.61/x
  3. Step 3: Cross multiply
    649,488.87x = 896,279.13 × 363,035.61
  4. Step 4: Simplify right side
    649,488.87x = 325,381,240,689.82
  5. Step 5: Solve for x
    x = 325,381,240,689.82/649,488.87
  6. Step 6: Final answer
    x = 500,980.47

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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.