Home / 807,513.40-1,211,270.10-746,687.80

Finding the Fourth Proportional to 807,513.40, 1,211,270.10 and 746,687.80

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Solution

The fourth proportional to 807,513.40, 1,211,270.10 and 746,687.80 is: 1,120,031.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,513.40 : 1,211,270.10 = 746,687.80 : x
  2. Step 2: Convert to fraction form
    807,513.40/1,211,270.10 = 746,687.80/x
  3. Step 3: Cross multiply
    807,513.40x = 1,211,270.10 × 746,687.80
  4. Step 4: Simplify right side
    807,513.40x = 904,440,606,174.78
  5. Step 5: Solve for x
    x = 904,440,606,174.78/807,513.40
  6. Step 6: Final answer
    x = 1,120,031.70

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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.