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Finding the Fourth Proportional to 558,430.32, 838,129.14 and 292,377

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Solution

The fourth proportional to 558,430.32, 838,129.14 and 292,377 is: 438,818.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,430.32 : 838,129.14 = 292,377 : x
  2. Step 2: Convert to fraction form
    558,430.32/838,129.14 = 292,377/x
  3. Step 3: Cross multiply
    558,430.32x = 838,129.14 × 292,377
  4. Step 4: Simplify right side
    558,430.32x = 245,049,683,565.78
  5. Step 5: Solve for x
    x = 245,049,683,565.78/558,430.32
  6. Step 6: Final answer
    x = 438,818.73

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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.