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Finding the Fourth Proportional to 372,411.54, 558,285.08 and 309,745.76

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Solution

The fourth proportional to 372,411.54, 558,285.08 and 309,745.76 is: 464,342.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,411.54 : 558,285.08 = 309,745.76 : x
  2. Step 2: Convert to fraction form
    372,411.54/558,285.08 = 309,745.76/x
  3. Step 3: Cross multiply
    372,411.54x = 558,285.08 × 309,745.76
  4. Step 4: Simplify right side
    372,411.54x = 172,926,432,061.11
  5. Step 5: Solve for x
    x = 172,926,432,061.11/372,411.54
  6. Step 6: Final answer
    x = 464,342.30

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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.