Home / 852,950.79-1,279,401.57-221,864.58

Finding the Fourth Proportional to 852,950.79, 1,279,401.57 and 221,864.58

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Solution

The fourth proportional to 852,950.79, 1,279,401.57 and 221,864.58 is: 332,790.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,950.79 : 1,279,401.57 = 221,864.58 : x
  2. Step 2: Convert to fraction form
    852,950.79/1,279,401.57 = 221,864.58/x
  3. Step 3: Cross multiply
    852,950.79x = 1,279,401.57 × 221,864.58
  4. Step 4: Simplify right side
    852,950.79x = 283,853,891,979.39
  5. Step 5: Solve for x
    x = 283,853,891,979.39/852,950.79
  6. Step 6: Final answer
    x = 332,790.47

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1.5x scale

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.