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Finding the Fourth Proportional to 547,750.45, 755,820.48 and 306,002.98

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Solution

The fourth proportional to 547,750.45, 755,820.48 and 306,002.98 is: 422,242.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,750.45 : 755,820.48 = 306,002.98 : x
  2. Step 2: Convert to fraction form
    547,750.45/755,820.48 = 306,002.98/x
  3. Step 3: Cross multiply
    547,750.45x = 755,820.48 × 306,002.98
  4. Step 4: Simplify right side
    547,750.45x = 231,283,319,225.03
  5. Step 5: Solve for x
    x = 231,283,319,225.03/547,750.45
  6. Step 6: Final answer
    x = 422,242.13

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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.