Home / 1,587,280.86-2,190,463.66-862,142.74

Finding the Fourth Proportional to 1,587,280.86, 2,190,463.66 and 862,142.74

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Solution

The fourth proportional to 1,587,280.86, 2,190,463.66 and 862,142.74 is: 1,189,765.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587,280.86 : 2,190,463.66 = 862,142.74 : x
  2. Step 2: Convert to fraction form
    1,587,280.86/2,190,463.66 = 862,142.74/x
  3. Step 3: Cross multiply
    1,587,280.86x = 2,190,463.66 × 862,142.74
  4. Step 4: Simplify right side
    1,587,280.86x = 1,888,492,337,304.35
  5. Step 5: Solve for x
    x = 1,888,492,337,304.35/1,587,280.86
  6. Step 6: Final answer
    x = 1,189,765.71

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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.