Home / 1,540,864.60-2,126,381.62-861,801.10

Finding the Fourth Proportional to 1,540,864.60, 2,126,381.62 and 861,801.10

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Solution

The fourth proportional to 1,540,864.60, 2,126,381.62 and 861,801.10 is: 1,189,279.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,540,864.60 : 2,126,381.62 = 861,801.10 : x
  2. Step 2: Convert to fraction form
    1,540,864.60/2,126,381.62 = 861,801.10/x
  3. Step 3: Cross multiply
    1,540,864.60x = 2,126,381.62 × 861,801.10
  4. Step 4: Simplify right side
    1,540,864.60x = 1,832,518,019,135.78
  5. Step 5: Solve for x
    x = 1,832,518,019,135.78/1,540,864.60
  6. Step 6: Final answer
    x = 1,189,279.07

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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.