Home / 782,135.28-1,079,346.66-424,439.28

Finding the Fourth Proportional to 782,135.28, 1,079,346.66 and 424,439.28

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Solution

The fourth proportional to 782,135.28, 1,079,346.66 and 424,439.28 is: 585,726.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,135.28 : 1,079,346.66 = 424,439.28 : x
  2. Step 2: Convert to fraction form
    782,135.28/1,079,346.66 = 424,439.28/x
  3. Step 3: Cross multiply
    782,135.28x = 1,079,346.66 × 424,439.28
  4. Step 4: Simplify right side
    782,135.28x = 458,117,119,240.81
  5. Step 5: Solve for x
    x = 458,117,119,240.81/782,135.28
  6. Step 6: Final answer
    x = 585,726.19

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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.