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Finding the Fourth Proportional to 976,872.10, 1,465,308.15 and 880,449.70

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Solution

The fourth proportional to 976,872.10, 1,465,308.15 and 880,449.70 is: 1,320,674.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,872.10 : 1,465,308.15 = 880,449.70 : x
  2. Step 2: Convert to fraction form
    976,872.10/1,465,308.15 = 880,449.70/x
  3. Step 3: Cross multiply
    976,872.10x = 1,465,308.15 × 880,449.70
  4. Step 4: Simplify right side
    976,872.10x = 1,290,130,121,075.06
  5. Step 5: Solve for x
    x = 1,290,130,121,075.06/976,872.10
  6. Step 6: Final answer
    x = 1,320,674.55

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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.