Home / 811,937.93-1,217,564.87-243,400.55

Finding the Fourth Proportional to 811,937.93, 1,217,564.87 and 243,400.55

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Solution

The fourth proportional to 811,937.93, 1,217,564.87 and 243,400.55 is: 364,998.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,937.93 : 1,217,564.87 = 243,400.55 : x
  2. Step 2: Convert to fraction form
    811,937.93/1,217,564.87 = 243,400.55/x
  3. Step 3: Cross multiply
    811,937.93x = 1,217,564.87 × 243,400.55
  4. Step 4: Simplify right side
    811,937.93x = 296,355,951,713.85
  5. Step 5: Solve for x
    x = 296,355,951,713.85/811,937.93
  6. Step 6: Final answer
    x = 364,998.29

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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.