Home / 1,587,612.72-2,190,924.20-862,471.86

Finding the Fourth Proportional to 1,587,612.72, 2,190,924.20 and 862,471.86

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Solution

The fourth proportional to 1,587,612.72, 2,190,924.20 and 862,471.86 is: 1,190,221.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587,612.72 : 2,190,924.20 = 862,471.86 : x
  2. Step 2: Convert to fraction form
    1,587,612.72/2,190,924.20 = 862,471.86/x
  3. Step 3: Cross multiply
    1,587,612.72x = 2,190,924.20 × 862,471.86
  4. Step 4: Simplify right side
    1,587,612.72x = 1,889,610,469,893.01
  5. Step 5: Solve for x
    x = 1,889,610,469,893.01/1,587,612.72
  6. Step 6: Final answer
    x = 1,190,221.30

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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.