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Finding the Fourth Proportional to 547,290.84, 755,254.20 and 305,577.52

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Solution

The fourth proportional to 547,290.84, 755,254.20 and 305,577.52 is: 421,692.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,290.84 : 755,254.20 = 305,577.52 : x
  2. Step 2: Convert to fraction form
    547,290.84/755,254.20 = 305,577.52/x
  3. Step 3: Cross multiply
    547,290.84x = 755,254.20 × 305,577.52
  4. Step 4: Simplify right side
    547,290.84x = 230,788,705,405.58
  5. Step 5: Solve for x
    x = 230,788,705,405.58/547,290.84
  6. Step 6: Final answer
    x = 421,692.98

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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.