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Finding the Fourth Proportional to 976,276.32, 1,465,449.66 and 864,681

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Solution

The fourth proportional to 976,276.32, 1,465,449.66 and 864,681 is: 1,297,938.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,276.32 : 1,465,449.66 = 864,681 : x
  2. Step 2: Convert to fraction form
    976,276.32/1,465,449.66 = 864,681/x
  3. Step 3: Cross multiply
    976,276.32x = 1,465,449.66 × 864,681
  4. Step 4: Simplify right side
    976,276.32x = 1,267,146,477,458.46
  5. Step 5: Solve for x
    x = 1,267,146,477,458.46/976,276.32
  6. Step 6: Final answer
    x = 1,297,938.35

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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.