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Finding the Fourth Proportional to 553,229.68, 763,552.56 and 320,624.16

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Solution

The fourth proportional to 553,229.68, 763,552.56 and 320,624.16 is: 442,516.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,229.68 : 763,552.56 = 320,624.16 : x
  2. Step 2: Convert to fraction form
    553,229.68/763,552.56 = 320,624.16/x
  3. Step 3: Cross multiply
    553,229.68x = 763,552.56 × 320,624.16
  4. Step 4: Simplify right side
    553,229.68x = 244,813,398,165.85
  5. Step 5: Solve for x
    x = 244,813,398,165.85/553,229.68
  6. Step 6: Final answer
    x = 442,516.75

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1.5x scale

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.