Home / 815,272.20-1,124,283.78-633,663.72

Finding the Fourth Proportional to 815,272.20, 1,124,283.78 and 633,663.72

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Solution

The fourth proportional to 815,272.20, 1,124,283.78 and 633,663.72 is: 873,840.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,272.20 : 1,124,283.78 = 633,663.72 : x
  2. Step 2: Convert to fraction form
    815,272.20/1,124,283.78 = 633,663.72/x
  3. Step 3: Cross multiply
    815,272.20x = 1,124,283.78 × 633,663.72
  4. Step 4: Simplify right side
    815,272.20x = 712,417,842,370.46
  5. Step 5: Solve for x
    x = 712,417,842,370.46/815,272.20
  6. Step 6: Final answer
    x = 873,840.47

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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.