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Finding the Fourth Proportional to 976,673.20, 1,465,009.80 and 808,711.60

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Solution

The fourth proportional to 976,673.20, 1,465,009.80 and 808,711.60 is: 1,213,067.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,673.20 : 1,465,009.80 = 808,711.60 : x
  2. Step 2: Convert to fraction form
    976,673.20/1,465,009.80 = 808,711.60/x
  3. Step 3: Cross multiply
    976,673.20x = 1,465,009.80 × 808,711.60
  4. Step 4: Simplify right side
    976,673.20x = 1,184,770,419,373.68
  5. Step 5: Solve for x
    x = 1,184,770,419,373.68/976,673.20
  6. Step 6: Final answer
    x = 1,213,067.40

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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.