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Finding the Fourth Proportional to 558,641.47, 838,377.93 and 274,484.56

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Solution

The fourth proportional to 558,641.47, 838,377.93 and 274,484.56 is: 411,931.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,641.47 : 838,377.93 = 274,484.56 : x
  2. Step 2: Convert to fraction form
    558,641.47/838,377.93 = 274,484.56/x
  3. Step 3: Cross multiply
    558,641.47x = 838,377.93 × 274,484.56
  4. Step 4: Simplify right side
    558,641.47x = 230,121,797,229.76
  5. Step 5: Solve for x
    x = 230,121,797,229.76/558,641.47
  6. Step 6: Final answer
    x = 411,931.10

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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.