Home / 976,645.80-1,465,406.10-443,892.60

Finding the Fourth Proportional to 976,645.80, 1,465,406.10 and 443,892.60

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Solution

The fourth proportional to 976,645.80, 1,465,406.10 and 443,892.60 is: 666,037.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,645.80 : 1,465,406.10 = 443,892.60 : x
  2. Step 2: Convert to fraction form
    976,645.80/1,465,406.10 = 443,892.60/x
  3. Step 3: Cross multiply
    976,645.80x = 1,465,406.10 × 443,892.60
  4. Step 4: Simplify right side
    976,645.80x = 650,482,923,784.86
  5. Step 5: Solve for x
    x = 650,482,923,784.86/976,645.80
  6. Step 6: Final answer
    x = 666,037.70

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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.