Home / 1,587,432.46-2,190,655.13-862,280.75

Finding the Fourth Proportional to 1,587,432.46, 2,190,655.13 and 862,280.75

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Solution

The fourth proportional to 1,587,432.46, 2,190,655.13 and 862,280.75 is: 1,189,946.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587,432.46 : 2,190,655.13 = 862,280.75 : x
  2. Step 2: Convert to fraction form
    1,587,432.46/2,190,655.13 = 862,280.75/x
  3. Step 3: Cross multiply
    1,587,432.46x = 2,190,655.13 × 862,280.75
  4. Step 4: Simplify right side
    1,587,432.46x = 1,888,959,748,487.75
  5. Step 5: Solve for x
    x = 1,888,959,748,487.75/1,587,432.46
  6. Step 6: Final answer
    x = 1,189,946.53

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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.