Home / 1,242,540.42-1,861,078.69-1,026,863.97

Finding the Fourth Proportional to 1,242,540.42, 1,861,078.69 and 1,026,863.97

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Solution

The fourth proportional to 1,242,540.42, 1,861,078.69 and 1,026,863.97 is: 1,538,038.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,540.42 : 1,861,078.69 = 1,026,863.97 : x
  2. Step 2: Convert to fraction form
    1,242,540.42/1,861,078.69 = 1,026,863.97/x
  3. Step 3: Cross multiply
    1,242,540.42x = 1,861,078.69 × 1,026,863.97
  4. Step 4: Simplify right side
    1,242,540.42x = 1,911,074,652,095.80
  5. Step 5: Solve for x
    x = 1,911,074,652,095.80/1,242,540.42
  6. Step 6: Final answer
    x = 1,538,038.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.