Home / 1,247,155.44-1,721,542.53-817,463.25

Finding the Fourth Proportional to 1,247,155.44, 1,721,542.53 and 817,463.25

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Solution

The fourth proportional to 1,247,155.44, 1,721,542.53 and 817,463.25 is: 1,128,406.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,155.44 : 1,721,542.53 = 817,463.25 : x
  2. Step 2: Convert to fraction form
    1,247,155.44/1,721,542.53 = 817,463.25/x
  3. Step 3: Cross multiply
    1,247,155.44x = 1,721,542.53 × 817,463.25
  4. Step 4: Simplify right side
    1,247,155.44x = 1,407,297,751,587.02
  5. Step 5: Solve for x
    x = 1,407,297,751,587.02/1,247,155.44
  6. Step 6: Final answer
    x = 1,128,406.06

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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.