Home / 781,793.28-1,078,876.80-424,097.28

Finding the Fourth Proportional to 781,793.28, 1,078,876.80 and 424,097.28

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Solution

The fourth proportional to 781,793.28, 1,078,876.80 and 424,097.28 is: 585,255.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,793.28 : 1,078,876.80 = 424,097.28 : x
  2. Step 2: Convert to fraction form
    781,793.28/1,078,876.80 = 424,097.28/x
  3. Step 3: Cross multiply
    781,793.28x = 1,078,876.80 × 424,097.28
  4. Step 4: Simplify right side
    781,793.28x = 457,548,716,335.10
  5. Step 5: Solve for x
    x = 457,548,716,335.10/781,793.28
  6. Step 6: Final answer
    x = 585,255.37

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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.