Home / 815,684.79-1,223,519.40-495,924.95

Finding the Fourth Proportional to 815,684.79, 1,223,519.40 and 495,924.95

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Solution

The fourth proportional to 815,684.79, 1,223,519.40 and 495,924.95 is: 743,882.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,684.79 : 1,223,519.40 = 495,924.95 : x
  2. Step 2: Convert to fraction form
    815,684.79/1,223,519.40 = 495,924.95/x
  3. Step 3: Cross multiply
    815,684.79x = 1,223,519.40 × 495,924.95
  4. Step 4: Simplify right side
    815,684.79x = 606,773,793,445.53
  5. Step 5: Solve for x
    x = 606,773,793,445.53/815,684.79
  6. Step 6: Final answer
    x = 743,882.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.