Home / 1,247,734.28-1,721,886.90-674,785.64

Finding the Fourth Proportional to 1,247,734.28, 1,721,886.90 and 674,785.64

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Solution

The fourth proportional to 1,247,734.28, 1,721,886.90 and 674,785.64 is: 931,211.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,734.28 : 1,721,886.90 = 674,785.64 : x
  2. Step 2: Convert to fraction form
    1,247,734.28/1,721,886.90 = 674,785.64/x
  3. Step 3: Cross multiply
    1,247,734.28x = 1,721,886.90 × 674,785.64
  4. Step 4: Simplify right side
    1,247,734.28x = 1,161,904,553,824.12
  5. Step 5: Solve for x
    x = 1,161,904,553,824.12/1,247,734.28
  6. Step 6: Final answer
    x = 931,211.53

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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.