Home / 976,820.40-1,465,230.60-408,103.20

Finding the Fourth Proportional to 976,820.40, 1,465,230.60 and 408,103.20

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Solution

The fourth proportional to 976,820.40, 1,465,230.60 and 408,103.20 is: 612,154.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,820.40 : 1,465,230.60 = 408,103.20 : x
  2. Step 2: Convert to fraction form
    976,820.40/1,465,230.60 = 408,103.20/x
  3. Step 3: Cross multiply
    976,820.40x = 1,465,230.60 × 408,103.20
  4. Step 4: Simplify right side
    976,820.40x = 597,965,296,597.92
  5. Step 5: Solve for x
    x = 597,965,296,597.92/976,820.40
  6. Step 6: Final answer
    x = 612,154.80

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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.