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Finding the Fourth Proportional to 992,700.72, 1,488,486.12 and 677,539.44

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Solution

The fourth proportional to 992,700.72, 1,488,486.12 and 677,539.44 is: 1,015,923.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,700.72 : 1,488,486.12 = 677,539.44 : x
  2. Step 2: Convert to fraction form
    992,700.72/1,488,486.12 = 677,539.44/x
  3. Step 3: Cross multiply
    992,700.72x = 1,488,486.12 × 677,539.44
  4. Step 4: Simplify right side
    992,700.72x = 1,008,508,052,192.57
  5. Step 5: Solve for x
    x = 1,008,508,052,192.57/992,700.72
  6. Step 6: Final answer
    x = 1,015,923.56

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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.