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Finding the Fourth Proportional to 641,102.89, 880,089.13 and 550,301.21

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Solution

The fourth proportional to 641,102.89, 880,089.13 and 550,301.21 is: 755,438.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,102.89 : 880,089.13 = 550,301.21 : x
  2. Step 2: Convert to fraction form
    641,102.89/880,089.13 = 550,301.21/x
  3. Step 3: Cross multiply
    641,102.89x = 880,089.13 × 550,301.21
  4. Step 4: Simplify right side
    641,102.89x = 484,314,107,370.65
  5. Step 5: Solve for x
    x = 484,314,107,370.65/641,102.89
  6. Step 6: Final answer
    x = 755,438.97

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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.