Home / 1,512,507.86-2,087,132.38-867,914.20

Finding the Fourth Proportional to 1,512,507.86, 2,087,132.38 and 867,914.20

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Solution

The fourth proportional to 1,512,507.86, 2,087,132.38 and 867,914.20 is: 1,197,647.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512,507.86 : 2,087,132.38 = 867,914.20 : x
  2. Step 2: Convert to fraction form
    1,512,507.86/2,087,132.38 = 867,914.20/x
  3. Step 3: Cross multiply
    1,512,507.86x = 2,087,132.38 × 867,914.20
  4. Step 4: Simplify right side
    1,512,507.86x = 1,811,451,829,881.80
  5. Step 5: Solve for x
    x = 1,811,451,829,881.80/1,512,507.86
  6. Step 6: Final answer
    x = 1,197,647.88

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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.