Home / 641,108.45-880,096.75-550,306.78

Finding the Fourth Proportional to 641,108.45, 880,096.75 and 550,306.78

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Solution

The fourth proportional to 641,108.45, 880,096.75 and 550,306.78 is: 755,446.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,108.45 : 880,096.75 = 550,306.78 : x
  2. Step 2: Convert to fraction form
    641,108.45/880,096.75 = 550,306.78/x
  3. Step 3: Cross multiply
    641,108.45x = 880,096.75 × 550,306.78
  4. Step 4: Simplify right side
    641,108.45x = 484,323,208,580.97
  5. Step 5: Solve for x
    x = 484,323,208,580.97/641,108.45
  6. Step 6: Final answer
    x = 755,446.62

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1.5x scale

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.