Home / 1,247,149.44-1,721,534.25-817,457.25

Finding the Fourth Proportional to 1,247,149.44, 1,721,534.25 and 817,457.25

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Solution

The fourth proportional to 1,247,149.44, 1,721,534.25 and 817,457.25 is: 1,128,397.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,149.44 : 1,721,534.25 = 817,457.25 : x
  2. Step 2: Convert to fraction form
    1,247,149.44/1,721,534.25 = 817,457.25/x
  3. Step 3: Cross multiply
    1,247,149.44x = 1,721,534.25 × 817,457.25
  4. Step 4: Simplify right side
    1,247,149.44x = 1,407,280,653,785.81
  5. Step 5: Solve for x
    x = 1,407,280,653,785.81/1,247,149.44
  6. Step 6: Final answer
    x = 1,128,397.78

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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.