Home / 1,279,001.16-1,918,051.38-425,841.12

Finding the Fourth Proportional to 1,279,001.16, 1,918,051.38 and 425,841.12

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Solution

The fourth proportional to 1,279,001.16, 1,918,051.38 and 425,841.12 is: 638,611.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,001.16 : 1,918,051.38 = 425,841.12 : x
  2. Step 2: Convert to fraction form
    1,279,001.16/1,918,051.38 = 425,841.12/x
  3. Step 3: Cross multiply
    1,279,001.16x = 1,918,051.38 × 425,841.12
  4. Step 4: Simplify right side
    1,279,001.16x = 816,785,147,876.75
  5. Step 5: Solve for x
    x = 816,785,147,876.75/1,279,001.16
  6. Step 6: Final answer
    x = 638,611.73

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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.