Home / 1,587,267.74-2,190,445.40-862,129.64

Finding the Fourth Proportional to 1,587,267.74, 2,190,445.40 and 862,129.64

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Solution

The fourth proportional to 1,587,267.74, 2,190,445.40 and 862,129.64 is: 1,189,747.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587,267.74 : 2,190,445.40 = 862,129.64 : x
  2. Step 2: Convert to fraction form
    1,587,267.74/2,190,445.40 = 862,129.64/x
  3. Step 3: Cross multiply
    1,587,267.74x = 2,190,445.40 × 862,129.64
  4. Step 4: Simplify right side
    1,587,267.74x = 1,888,447,904,141.66
  5. Step 5: Solve for x
    x = 1,888,447,904,141.66/1,587,267.74
  6. Step 6: Final answer
    x = 1,189,747.55

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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.