Home / 976,811.20-1,465,143.90-408,045.40

Finding the Fourth Proportional to 976,811.20, 1,465,143.90 and 408,045.40

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Solution

The fourth proportional to 976,811.20, 1,465,143.90 and 408,045.40 is: 612,037.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,811.20 : 1,465,143.90 = 408,045.40 : x
  2. Step 2: Convert to fraction form
    976,811.20/1,465,143.90 = 408,045.40/x
  3. Step 3: Cross multiply
    976,811.20x = 1,465,143.90 × 408,045.40
  4. Step 4: Simplify right side
    976,811.20x = 597,845,228,733.06
  5. Step 5: Solve for x
    x = 597,845,228,733.06/976,811.20
  6. Step 6: Final answer
    x = 612,037.65

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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.