Home / 840,780.63-1,160,301.78-458,832.02

Finding the Fourth Proportional to 840,780.63, 1,160,301.78 and 458,832.02

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Solution

The fourth proportional to 840,780.63, 1,160,301.78 and 458,832.02 is: 633,201.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,780.63 : 1,160,301.78 = 458,832.02 : x
  2. Step 2: Convert to fraction form
    840,780.63/1,160,301.78 = 458,832.02/x
  3. Step 3: Cross multiply
    840,780.63x = 1,160,301.78 × 458,832.02
  4. Step 4: Simplify right side
    840,780.63x = 532,383,603,725.49
  5. Step 5: Solve for x
    x = 532,383,603,725.49/840,780.63
  6. Step 6: Final answer
    x = 633,201.56

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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.