Home / 1,005,687.20-1,387,843.80-552,977.12

Finding the Fourth Proportional to 1,005,687.20, 1,387,843.80 and 552,977.12

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Solution

The fourth proportional to 1,005,687.20, 1,387,843.80 and 552,977.12 is: 763,105.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,687.20 : 1,387,843.80 = 552,977.12 : x
  2. Step 2: Convert to fraction form
    1,005,687.20/1,387,843.80 = 552,977.12/x
  3. Step 3: Cross multiply
    1,005,687.20x = 1,387,843.80 × 552,977.12
  4. Step 4: Simplify right side
    1,005,687.20x = 767,445,867,533.86
  5. Step 5: Solve for x
    x = 767,445,867,533.86/1,005,687.20
  6. Step 6: Final answer
    x = 763,105.93

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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.