Home / 865,676.79-1,298,515.51-225,978.73

Finding the Fourth Proportional to 865,676.79, 1,298,515.51 and 225,978.73

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Solution

The fourth proportional to 865,676.79, 1,298,515.51 and 225,978.73 is: 338,968.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,676.79 : 1,298,515.51 = 225,978.73 : x
  2. Step 2: Convert to fraction form
    865,676.79/1,298,515.51 = 225,978.73/x
  3. Step 3: Cross multiply
    865,676.79x = 1,298,515.51 × 225,978.73
  4. Step 4: Simplify right side
    865,676.79x = 293,436,885,835.10
  5. Step 5: Solve for x
    x = 293,436,885,835.10/865,676.79
  6. Step 6: Final answer
    x = 338,968.18

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1.5x scale

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.