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Finding the Fourth Proportional to 636,429.66, 878,022.42 and 364,350.89

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Solution

The fourth proportional to 636,429.66, 878,022.42 and 364,350.89 is: 502,660.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,429.66 : 878,022.42 = 364,350.89 : x
  2. Step 2: Convert to fraction form
    636,429.66/878,022.42 = 364,350.89/x
  3. Step 3: Cross multiply
    636,429.66x = 878,022.42 × 364,350.89
  4. Step 4: Simplify right side
    636,429.66x = 319,908,250,995.69
  5. Step 5: Solve for x
    x = 319,908,250,995.69/636,429.66
  6. Step 6: Final answer
    x = 502,660.82

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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.