Home / 687,632.92-1,031,456.46-207,864.66

Finding the Fourth Proportional to 687,632.92, 1,031,456.46 and 207,864.66

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Solution

The fourth proportional to 687,632.92, 1,031,456.46 and 207,864.66 is: 311,799.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,632.92 : 1,031,456.46 = 207,864.66 : x
  2. Step 2: Convert to fraction form
    687,632.92/1,031,456.46 = 207,864.66/x
  3. Step 3: Cross multiply
    687,632.92x = 1,031,456.46 × 207,864.66
  4. Step 4: Simplify right side
    687,632.92x = 214,403,346,362.70
  5. Step 5: Solve for x
    x = 214,403,346,362.70/687,632.92
  6. Step 6: Final answer
    x = 311,799.13

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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.