Home / 1,131,345.18-1,561,262.13-622,080.30

Finding the Fourth Proportional to 1,131,345.18, 1,561,262.13 and 622,080.30

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Solution

The fourth proportional to 1,131,345.18, 1,561,262.13 and 622,080.30 is: 858,473.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,345.18 : 1,561,262.13 = 622,080.30 : x
  2. Step 2: Convert to fraction form
    1,131,345.18/1,561,262.13 = 622,080.30/x
  3. Step 3: Cross multiply
    1,131,345.18x = 1,561,262.13 × 622,080.30
  4. Step 4: Simplify right side
    1,131,345.18x = 971,230,414,209.04
  5. Step 5: Solve for x
    x = 971,230,414,209.04/1,131,345.18
  6. Step 6: Final answer
    x = 858,473.99

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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.