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Finding the Fourth Proportional to 659,671.72, 910,270.17 and 369,299.18

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Solution

The fourth proportional to 659,671.72, 910,270.17 and 369,299.18 is: 509,589.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,671.72 : 910,270.17 = 369,299.18 : x
  2. Step 2: Convert to fraction form
    659,671.72/910,270.17 = 369,299.18/x
  3. Step 3: Cross multiply
    659,671.72x = 910,270.17 × 369,299.18
  4. Step 4: Simplify right side
    659,671.72x = 336,162,029,635.14
  5. Step 5: Solve for x
    x = 336,162,029,635.14/659,671.72
  6. Step 6: Final answer
    x = 509,589.88

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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.