Home / 875,665.42-1,313,732.13-314,704.78

Finding the Fourth Proportional to 875,665.42, 1,313,732.13 and 314,704.78

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Solution

The fourth proportional to 875,665.42, 1,313,732.13 and 314,704.78 is: 472,141.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,665.42 : 1,313,732.13 = 314,704.78 : x
  2. Step 2: Convert to fraction form
    875,665.42/1,313,732.13 = 314,704.78/x
  3. Step 3: Cross multiply
    875,665.42x = 1,313,732.13 × 314,704.78
  4. Step 4: Simplify right side
    875,665.42x = 413,437,780,950.58
  5. Step 5: Solve for x
    x = 413,437,780,950.58/875,665.42
  6. Step 6: Final answer
    x = 472,141.27

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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.