Home / 815,464.80-1,223,197.20-514,314.90

Finding the Fourth Proportional to 815,464.80, 1,223,197.20 and 514,314.90

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Solution

The fourth proportional to 815,464.80, 1,223,197.20 and 514,314.90 is: 771,472.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,464.80 : 1,223,197.20 = 514,314.90 : x
  2. Step 2: Convert to fraction form
    815,464.80/1,223,197.20 = 514,314.90/x
  3. Step 3: Cross multiply
    815,464.80x = 1,223,197.20 × 514,314.90
  4. Step 4: Simplify right side
    815,464.80x = 629,108,545,598.28
  5. Step 5: Solve for x
    x = 629,108,545,598.28/815,464.80
  6. Step 6: Final answer
    x = 771,472.35

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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.