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Finding the Fourth Proportional to 658,232.46, 987,705.90 and 279,366.30

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Solution

The fourth proportional to 658,232.46, 987,705.90 and 279,366.30 is: 419,201.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,232.46 : 987,705.90 = 279,366.30 : x
  2. Step 2: Convert to fraction form
    658,232.46/987,705.90 = 279,366.30/x
  3. Step 3: Cross multiply
    658,232.46x = 987,705.90 × 279,366.30
  4. Step 4: Simplify right side
    658,232.46x = 275,931,742,771.17
  5. Step 5: Solve for x
    x = 275,931,742,771.17/658,232.46
  6. Step 6: Final answer
    x = 419,201.06

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1.5x scale

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.