Home / 711,037.10-1,067,138.85-687,709.10

Finding the Fourth Proportional to 711,037.10, 1,067,138.85 and 687,709.10

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Solution

The fourth proportional to 711,037.10, 1,067,138.85 and 687,709.10 is: 1,032,127.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,037.10 : 1,067,138.85 = 687,709.10 : x
  2. Step 2: Convert to fraction form
    711,037.10/1,067,138.85 = 687,709.10/x
  3. Step 3: Cross multiply
    711,037.10x = 1,067,138.85 × 687,709.10
  4. Step 4: Simplify right side
    711,037.10x = 733,881,098,108.54
  5. Step 5: Solve for x
    x = 733,881,098,108.54/711,037.10
  6. Step 6: Final answer
    x = 1,032,127.72

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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.