Home / 1,251,117.43-1,726,542.83-678,157.62

Finding the Fourth Proportional to 1,251,117.43, 1,726,542.83 and 678,157.62

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Solution

The fourth proportional to 1,251,117.43, 1,726,542.83 and 678,157.62 is: 935,857.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251,117.43 : 1,726,542.83 = 678,157.62 : x
  2. Step 2: Convert to fraction form
    1,251,117.43/1,726,542.83 = 678,157.62/x
  3. Step 3: Cross multiply
    1,251,117.43x = 1,726,542.83 × 678,157.62
  4. Step 4: Simplify right side
    1,251,117.43x = 1,170,868,176,420.86
  5. Step 5: Solve for x
    x = 1,170,868,176,420.86/1,251,117.43
  6. Step 6: Final answer
    x = 935,857.94

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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.