Home / 987,198.12-1,362,337.65-534,489.12

Finding the Fourth Proportional to 987,198.12, 1,362,337.65 and 534,489.12

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Solution

The fourth proportional to 987,198.12, 1,362,337.65 and 534,489.12 is: 737,597.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,198.12 : 1,362,337.65 = 534,489.12 : x
  2. Step 2: Convert to fraction form
    987,198.12/1,362,337.65 = 534,489.12/x
  3. Step 3: Cross multiply
    987,198.12x = 1,362,337.65 × 534,489.12
  4. Step 4: Simplify right side
    987,198.12x = 728,154,651,691.37
  5. Step 5: Solve for x
    x = 728,154,651,691.37/987,198.12
  6. Step 6: Final answer
    x = 737,597.28

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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.