Home / 782,107.52-1,079,308.36-424,411.52

Finding the Fourth Proportional to 782,107.52, 1,079,308.36 and 424,411.52

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Solution

The fourth proportional to 782,107.52, 1,079,308.36 and 424,411.52 is: 585,687.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,107.52 : 1,079,308.36 = 424,411.52 : x
  2. Step 2: Convert to fraction form
    782,107.52/1,079,308.36 = 424,411.52/x
  3. Step 3: Cross multiply
    782,107.52x = 1,079,308.36 × 424,411.52
  4. Step 4: Simplify right side
    782,107.52x = 458,070,901,616.31
  5. Step 5: Solve for x
    x = 458,070,901,616.31/782,107.52
  6. Step 6: Final answer
    x = 585,687.89

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1.5x scale

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.