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Finding the Fourth Proportional to 607,617.12, 911,498.40 and 252,870.96

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Solution

The fourth proportional to 607,617.12, 911,498.40 and 252,870.96 is: 379,336.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,617.12 : 911,498.40 = 252,870.96 : x
  2. Step 2: Convert to fraction form
    607,617.12/911,498.40 = 252,870.96/x
  3. Step 3: Cross multiply
    607,617.12x = 911,498.40 × 252,870.96
  4. Step 4: Simplify right side
    607,617.12x = 230,491,475,446.46
  5. Step 5: Solve for x
    x = 230,491,475,446.46/607,617.12
  6. Step 6: Final answer
    x = 379,336.70

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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.