Home / 662,556.72-992,581.20-391,874.16

Finding the Fourth Proportional to 662,556.72, 992,581.20 and 391,874.16

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Solution

The fourth proportional to 662,556.72, 992,581.20 and 391,874.16 is: 587,069.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,556.72 : 992,581.20 = 391,874.16 : x
  2. Step 2: Convert to fraction form
    662,556.72/992,581.20 = 391,874.16/x
  3. Step 3: Cross multiply
    662,556.72x = 992,581.20 × 391,874.16
  4. Step 4: Simplify right side
    662,556.72x = 388,966,923,981.79
  5. Step 5: Solve for x
    x = 388,966,923,981.79/662,556.72
  6. Step 6: Final answer
    x = 587,069.62

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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.