Home / 727,306.96-1,091,023.56-221,981.72

Finding the Fourth Proportional to 727,306.96, 1,091,023.56 and 221,981.72

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Solution

The fourth proportional to 727,306.96, 1,091,023.56 and 221,981.72 is: 332,991.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,306.96 : 1,091,023.56 = 221,981.72 : x
  2. Step 2: Convert to fraction form
    727,306.96/1,091,023.56 = 221,981.72/x
  3. Step 3: Cross multiply
    727,306.96x = 1,091,023.56 × 221,981.72
  4. Step 4: Simplify right side
    727,306.96x = 242,187,286,409.32
  5. Step 5: Solve for x
    x = 242,187,286,409.32/727,306.96
  6. Step 6: Final answer
    x = 332,991.84

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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.