Home / 1,587,172.88-2,190,314.39-862,034.76

Finding the Fourth Proportional to 1,587,172.88, 2,190,314.39 and 862,034.76

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Solution

The fourth proportional to 1,587,172.88, 2,190,314.39 and 862,034.76 is: 1,189,616.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587,172.88 : 2,190,314.39 = 862,034.76 : x
  2. Step 2: Convert to fraction form
    1,587,172.88/2,190,314.39 = 862,034.76/x
  3. Step 3: Cross multiply
    1,587,172.88x = 2,190,314.39 × 862,034.76
  4. Step 4: Simplify right side
    1,587,172.88x = 1,888,127,135,198.02
  5. Step 5: Solve for x
    x = 1,888,127,135,198.02/1,587,172.88
  6. Step 6: Final answer
    x = 1,189,616.55

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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.