Home / 976,815.20-1,465,149.90-408,049.40

Finding the Fourth Proportional to 976,815.20, 1,465,149.90 and 408,049.40

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Solution

The fourth proportional to 976,815.20, 1,465,149.90 and 408,049.40 is: 612,043.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,815.20 : 1,465,149.90 = 408,049.40 : x
  2. Step 2: Convert to fraction form
    976,815.20/1,465,149.90 = 408,049.40/x
  3. Step 3: Cross multiply
    976,815.20x = 1,465,149.90 × 408,049.40
  4. Step 4: Simplify right side
    976,815.20x = 597,853,537,605.06
  5. Step 5: Solve for x
    x = 597,853,537,605.06/976,815.20
  6. Step 6: Final answer
    x = 612,043.65

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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.