Home / 976,838.40-1,465,257.60-408,121.20

Finding the Fourth Proportional to 976,838.40, 1,465,257.60 and 408,121.20

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Solution

The fourth proportional to 976,838.40, 1,465,257.60 and 408,121.20 is: 612,181.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,838.40 : 1,465,257.60 = 408,121.20 : x
  2. Step 2: Convert to fraction form
    976,838.40/1,465,257.60 = 408,121.20/x
  3. Step 3: Cross multiply
    976,838.40x = 1,465,257.60 × 408,121.20
  4. Step 4: Simplify right side
    976,838.40x = 598,002,690,021.12
  5. Step 5: Solve for x
    x = 598,002,690,021.12/976,838.40
  6. Step 6: Final answer
    x = 612,181.80

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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.