Home / 1,427,575.76-1,970,057.39-783,001.25

Finding the Fourth Proportional to 1,427,575.76, 1,970,057.39 and 783,001.25

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Solution

The fourth proportional to 1,427,575.76, 1,970,057.39 and 783,001.25 is: 1,080,543.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,575.76 : 1,970,057.39 = 783,001.25 : x
  2. Step 2: Convert to fraction form
    1,427,575.76/1,970,057.39 = 783,001.25/x
  3. Step 3: Cross multiply
    1,427,575.76x = 1,970,057.39 × 783,001.25
  4. Step 4: Simplify right side
    1,427,575.76x = 1,542,557,398,941.74
  5. Step 5: Solve for x
    x = 1,542,557,398,941.74/1,427,575.76
  6. Step 6: Final answer
    x = 1,080,543.28

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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.