Home / 815,496.30-1,223,244.45-647,534.70

Finding the Fourth Proportional to 815,496.30, 1,223,244.45 and 647,534.70

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Solution

The fourth proportional to 815,496.30, 1,223,244.45 and 647,534.70 is: 971,302.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,496.30 : 1,223,244.45 = 647,534.70 : x
  2. Step 2: Convert to fraction form
    815,496.30/1,223,244.45 = 647,534.70/x
  3. Step 3: Cross multiply
    815,496.30x = 1,223,244.45 × 647,534.70
  4. Step 4: Simplify right side
    815,496.30x = 792,093,227,957.42
  5. Step 5: Solve for x
    x = 792,093,227,957.42/815,496.30
  6. Step 6: Final answer
    x = 971,302.05

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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.