Home / 720,677.55-1,081,002.66-215,239.98

Finding the Fourth Proportional to 720,677.55, 1,081,002.66 and 215,239.98

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Solution

The fourth proportional to 720,677.55, 1,081,002.66 and 215,239.98 is: 322,855.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,677.55 : 1,081,002.66 = 215,239.98 : x
  2. Step 2: Convert to fraction form
    720,677.55/1,081,002.66 = 215,239.98/x
  3. Step 3: Cross multiply
    720,677.55x = 1,081,002.66 × 215,239.98
  4. Step 4: Simplify right side
    720,677.55x = 232,674,995,375.68
  5. Step 5: Solve for x
    x = 232,674,995,375.68/720,677.55
  6. Step 6: Final answer
    x = 322,855.89

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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.