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Finding the Fourth Proportional to 607,280.38, 910,311 and 207,647.86

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Solution

The fourth proportional to 607,280.38, 910,311 and 207,647.86 is: 311,263.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,280.38 : 910,311 = 207,647.86 : x
  2. Step 2: Convert to fraction form
    607,280.38/910,311 = 207,647.86/x
  3. Step 3: Cross multiply
    607,280.38x = 910,311 × 207,647.86
  4. Step 4: Simplify right side
    607,280.38x = 189,024,131,084.46
  5. Step 5: Solve for x
    x = 189,024,131,084.46/607,280.38
  6. Step 6: Final answer
    x = 311,263.36

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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.