Home / 641,106.45-880,094.01-550,304.78

Finding the Fourth Proportional to 641,106.45, 880,094.01 and 550,304.78

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Solution

The fourth proportional to 641,106.45, 880,094.01 and 550,304.78 is: 755,443.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,106.45 : 880,094.01 = 550,304.78 : x
  2. Step 2: Convert to fraction form
    641,106.45/880,094.01 = 550,304.78/x
  3. Step 3: Cross multiply
    641,106.45x = 880,094.01 × 550,304.78
  4. Step 4: Simplify right side
    641,106.45x = 484,319,936,151.90
  5. Step 5: Solve for x
    x = 484,319,936,151.90/641,106.45
  6. Step 6: Final answer
    x = 755,443.87

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.