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Finding the Fourth Proportional to 526,431.74, 726,475.95 and 297,037.66

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Solution

The fourth proportional to 526,431.74, 726,475.95 and 297,037.66 is: 409,912.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,431.74 : 726,475.95 = 297,037.66 : x
  2. Step 2: Convert to fraction form
    526,431.74/726,475.95 = 297,037.66/x
  3. Step 3: Cross multiply
    526,431.74x = 726,475.95 × 297,037.66
  4. Step 4: Simplify right side
    526,431.74x = 215,790,714,154.73
  5. Step 5: Solve for x
    x = 215,790,714,154.73/526,431.74
  6. Step 6: Final answer
    x = 409,912.05

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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.