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Finding the Fourth Proportional to 720,506.96, 1,080,758.76 and 676,663.04

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Solution

The fourth proportional to 720,506.96, 1,080,758.76 and 676,663.04 is: 1,014,992.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,506.96 : 1,080,758.76 = 676,663.04 : x
  2. Step 2: Convert to fraction form
    720,506.96/1,080,758.76 = 676,663.04/x
  3. Step 3: Cross multiply
    720,506.96x = 1,080,758.76 × 676,663.04
  4. Step 4: Simplify right side
    720,506.96x = 731,309,508,048.23
  5. Step 5: Solve for x
    x = 731,309,508,048.23/720,506.96
  6. Step 6: Final answer
    x = 1,014,992.98

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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.