Home / 1,218,492.76-1,681,632.83-674,628.55

Finding the Fourth Proportional to 1,218,492.76, 1,681,632.83 and 674,628.55

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Solution

The fourth proportional to 1,218,492.76, 1,681,632.83 and 674,628.55 is: 931,049.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,492.76 : 1,681,632.83 = 674,628.55 : x
  2. Step 2: Convert to fraction form
    1,218,492.76/1,681,632.83 = 674,628.55/x
  3. Step 3: Cross multiply
    1,218,492.76x = 1,681,632.83 × 674,628.55
  4. Step 4: Simplify right side
    1,218,492.76x = 1,134,477,515,217.79
  5. Step 5: Solve for x
    x = 1,134,477,515,217.79/1,218,492.76
  6. Step 6: Final answer
    x = 931,049.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.