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Finding the Fourth Proportional to 711,041.60, 1,067,145.60 and 687,713.60

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Solution

The fourth proportional to 711,041.60, 1,067,145.60 and 687,713.60 is: 1,032,134.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,041.60 : 1,067,145.60 = 687,713.60 : x
  2. Step 2: Convert to fraction form
    711,041.60/1,067,145.60 = 687,713.60/x
  3. Step 3: Cross multiply
    711,041.60x = 1,067,145.60 × 687,713.60
  4. Step 4: Simplify right side
    711,041.60x = 733,890,542,300.16
  5. Step 5: Solve for x
    x = 733,890,542,300.16/711,041.60
  6. Step 6: Final answer
    x = 1,032,134.47

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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.