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Finding the Fourth Proportional to 558,429.32, 838,127.64 and 292,376

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Solution

The fourth proportional to 558,429.32, 838,127.64 and 292,376 is: 438,817.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,429.32 : 838,127.64 = 292,376 : x
  2. Step 2: Convert to fraction form
    558,429.32/838,127.64 = 292,376/x
  3. Step 3: Cross multiply
    558,429.32x = 838,127.64 × 292,376
  4. Step 4: Simplify right side
    558,429.32x = 245,048,406,872.64
  5. Step 5: Solve for x
    x = 245,048,406,872.64/558,429.32
  6. Step 6: Final answer
    x = 438,817.23

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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.