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Finding the Fourth Proportional to 637,071.72, 879,159.11 and 350,591.82

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Solution

The fourth proportional to 637,071.72, 879,159.11 and 350,591.82 is: 483,816.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,071.72 : 879,159.11 = 350,591.82 : x
  2. Step 2: Convert to fraction form
    637,071.72/879,159.11 = 350,591.82/x
  3. Step 3: Cross multiply
    637,071.72x = 879,159.11 × 350,591.82
  4. Step 4: Simplify right side
    637,071.72x = 308,225,990,691.52
  5. Step 5: Solve for x
    x = 308,225,990,691.52/637,071.72
  6. Step 6: Final answer
    x = 483,816.78

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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.