Home / 1,425,077.28-1,966,567.92-813,218.88

Finding the Fourth Proportional to 1,425,077.28, 1,966,567.92 and 813,218.88

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Solution

The fourth proportional to 1,425,077.28, 1,966,567.92 and 813,218.88 is: 1,122,219.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,077.28 : 1,966,567.92 = 813,218.88 : x
  2. Step 2: Convert to fraction form
    1,425,077.28/1,966,567.92 = 813,218.88/x
  3. Step 3: Cross multiply
    1,425,077.28x = 1,966,567.92 × 813,218.88
  4. Step 4: Simplify right side
    1,425,077.28x = 1,599,250,161,346.33
  5. Step 5: Solve for x
    x = 1,599,250,161,346.33/1,425,077.28
  6. Step 6: Final answer
    x = 1,122,219.96

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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.