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Finding the Fourth Proportional to 547,074.09, 755,308.98 and 375,279.84

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Solution

The fourth proportional to 547,074.09, 755,308.98 and 375,279.84 is: 518,124.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,074.09 : 755,308.98 = 375,279.84 : x
  2. Step 2: Convert to fraction form
    547,074.09/755,308.98 = 375,279.84/x
  3. Step 3: Cross multiply
    547,074.09x = 755,308.98 × 375,279.84
  4. Step 4: Simplify right side
    547,074.09x = 283,452,233,164.96
  5. Step 5: Solve for x
    x = 283,452,233,164.96/547,074.09
  6. Step 6: Final answer
    x = 518,124.03

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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.