Home / 815,275.20-1,124,287.92-633,666.72

Finding the Fourth Proportional to 815,275.20, 1,124,287.92 and 633,666.72

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Solution

The fourth proportional to 815,275.20, 1,124,287.92 and 633,666.72 is: 873,844.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,275.20 : 1,124,287.92 = 633,666.72 : x
  2. Step 2: Convert to fraction form
    815,275.20/1,124,287.92 = 633,666.72/x
  3. Step 3: Cross multiply
    815,275.20x = 1,124,287.92 × 633,666.72
  4. Step 4: Simplify right side
    815,275.20x = 712,423,838,602.02
  5. Step 5: Solve for x
    x = 712,423,838,602.02/815,275.20
  6. Step 6: Final answer
    x = 873,844.61

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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.