Home / 1,251,116.43-1,726,541.45-678,156.62

Finding the Fourth Proportional to 1,251,116.43, 1,726,541.45 and 678,156.62

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Solution

The fourth proportional to 1,251,116.43, 1,726,541.45 and 678,156.62 is: 935,856.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251,116.43 : 1,726,541.45 = 678,156.62 : x
  2. Step 2: Convert to fraction form
    1,251,116.43/1,726,541.45 = 678,156.62/x
  3. Step 3: Cross multiply
    1,251,116.43x = 1,726,541.45 × 678,156.62
  4. Step 4: Simplify right side
    1,251,116.43x = 1,170,865,501,998.41
  5. Step 5: Solve for x
    x = 1,170,865,501,998.41/1,251,116.43
  6. Step 6: Final answer
    x = 935,856.55

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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.