Home / 1,251,126.79-1,726,508.72-678,154.66

Finding the Fourth Proportional to 1,251,126.79, 1,726,508.72 and 678,154.66

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Solution

The fourth proportional to 1,251,126.79, 1,726,508.72 and 678,154.66 is: 935,828.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251,126.79 : 1,726,508.72 = 678,154.66 : x
  2. Step 2: Convert to fraction form
    1,251,126.79/1,726,508.72 = 678,154.66/x
  3. Step 3: Cross multiply
    1,251,126.79x = 1,726,508.72 × 678,154.66
  4. Step 4: Simplify right side
    1,251,126.79x = 1,170,839,933,998.64
  5. Step 5: Solve for x
    x = 1,170,839,933,998.64/1,251,126.79
  6. Step 6: Final answer
    x = 935,828.36

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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.