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Finding the Fourth Proportional to 547,387.29, 755,387.33 and 305,674.11

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Solution

The fourth proportional to 547,387.29, 755,387.33 and 305,674.11 is: 421,826.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,387.29 : 755,387.33 = 305,674.11 : x
  2. Step 2: Convert to fraction form
    547,387.29/755,387.33 = 305,674.11/x
  3. Step 3: Cross multiply
    547,387.29x = 755,387.33 × 305,674.11
  4. Step 4: Simplify right side
    547,387.29x = 230,902,348,274.66
  5. Step 5: Solve for x
    x = 230,902,348,274.66/547,387.29
  6. Step 6: Final answer
    x = 421,826.29

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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.