Home / 1,561,489.52-2,154,742.39-863,740.83

Finding the Fourth Proportional to 1,561,489.52, 2,154,742.39 and 863,740.83

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Solution

The fourth proportional to 1,561,489.52, 2,154,742.39 and 863,740.83 is: 1,191,899.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,561,489.52 : 2,154,742.39 = 863,740.83 : x
  2. Step 2: Convert to fraction form
    1,561,489.52/2,154,742.39 = 863,740.83/x
  3. Step 3: Cross multiply
    1,561,489.52x = 2,154,742.39 × 863,740.83
  4. Step 4: Simplify right side
    1,561,489.52x = 1,861,138,989,534.74
  5. Step 5: Solve for x
    x = 1,861,138,989,534.74/1,561,489.52
  6. Step 6: Final answer
    x = 1,191,899.77

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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.