Home / 679,954.90-1,019,932.35-325,660.90

Finding the Fourth Proportional to 679,954.90, 1,019,932.35 and 325,660.90

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Solution

The fourth proportional to 679,954.90, 1,019,932.35 and 325,660.90 is: 488,491.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,954.90 : 1,019,932.35 = 325,660.90 : x
  2. Step 2: Convert to fraction form
    679,954.90/1,019,932.35 = 325,660.90/x
  3. Step 3: Cross multiply
    679,954.90x = 1,019,932.35 × 325,660.90
  4. Step 4: Simplify right side
    679,954.90x = 332,152,087,040.12
  5. Step 5: Solve for x
    x = 332,152,087,040.12/679,954.90
  6. Step 6: Final answer
    x = 488,491.35

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Double scale
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Similar ratio
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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.