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Finding the Fourth Proportional to 545,422.57, 752,675.97 and 300,402.62

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Solution

The fourth proportional to 545,422.57, 752,675.97 and 300,402.62 is: 414,551.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,422.57 : 752,675.97 = 300,402.62 : x
  2. Step 2: Convert to fraction form
    545,422.57/752,675.97 = 300,402.62/x
  3. Step 3: Cross multiply
    545,422.57x = 752,675.97 × 300,402.62
  4. Step 4: Simplify right side
    545,422.57x = 226,105,833,778.72
  5. Step 5: Solve for x
    x = 226,105,833,778.72/545,422.57
  6. Step 6: Final answer
    x = 414,551.66

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1.5x scale

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.