Home / 1,140,839.60-1,573,864.44-687,878.96

Finding the Fourth Proportional to 1,140,839.60, 1,573,864.44 and 687,878.96

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Solution

The fourth proportional to 1,140,839.60, 1,573,864.44 and 687,878.96 is: 948,974.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140,839.60 : 1,573,864.44 = 687,878.96 : x
  2. Step 2: Convert to fraction form
    1,140,839.60/1,573,864.44 = 687,878.96/x
  3. Step 3: Cross multiply
    1,140,839.60x = 1,573,864.44 × 687,878.96
  4. Step 4: Simplify right side
    1,140,839.60x = 1,082,628,234,168.18
  5. Step 5: Solve for x
    x = 1,082,628,234,168.18/1,140,839.60
  6. Step 6: Final answer
    x = 948,974.98

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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.