Home / 780,920.97-1,170,044.61-426,184.17

Finding the Fourth Proportional to 780,920.97, 1,170,044.61 and 426,184.17

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Solution

The fourth proportional to 780,920.97, 1,170,044.61 and 426,184.17 is: 638,546.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,920.97 : 1,170,044.61 = 426,184.17 : x
  2. Step 2: Convert to fraction form
    780,920.97/1,170,044.61 = 426,184.17/x
  3. Step 3: Cross multiply
    780,920.97x = 1,170,044.61 × 426,184.17
  4. Step 4: Simplify right side
    780,920.97x = 498,654,485,125.60
  5. Step 5: Solve for x
    x = 498,654,485,125.60/780,920.97
  6. Step 6: Final answer
    x = 638,546.67

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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.