Home / 1,211,639.38-1,671,994.24-667,773.52

Finding the Fourth Proportional to 1,211,639.38, 1,671,994.24 and 667,773.52

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Solution

The fourth proportional to 1,211,639.38, 1,671,994.24 and 667,773.52 is: 921,489.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,639.38 : 1,671,994.24 = 667,773.52 : x
  2. Step 2: Convert to fraction form
    1,211,639.38/1,671,994.24 = 667,773.52/x
  3. Step 3: Cross multiply
    1,211,639.38x = 1,671,994.24 × 667,773.52
  4. Step 4: Simplify right side
    1,211,639.38x = 1,116,513,479,064.52
  5. Step 5: Solve for x
    x = 1,116,513,479,064.52/1,211,639.38
  6. Step 6: Final answer
    x = 921,489.92

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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.