Home / 840,494.78-1,159,877.41-477,918.73

Finding the Fourth Proportional to 840,494.78, 1,159,877.41 and 477,918.73

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Solution

The fourth proportional to 840,494.78, 1,159,877.41 and 477,918.73 is: 659,524.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,494.78 : 1,159,877.41 = 477,918.73 : x
  2. Step 2: Convert to fraction form
    840,494.78/1,159,877.41 = 477,918.73/x
  3. Step 3: Cross multiply
    840,494.78x = 1,159,877.41 × 477,918.73
  4. Step 4: Simplify right side
    840,494.78x = 554,327,138,742.89
  5. Step 5: Solve for x
    x = 554,327,138,742.89/840,494.78
  6. Step 6: Final answer
    x = 659,524.78

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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.