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Finding the Fourth Proportional to 598,751.20, 898,126.80 and 543,638.80

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Solution

The fourth proportional to 598,751.20, 898,126.80 and 543,638.80 is: 815,458.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,751.20 : 898,126.80 = 543,638.80 : x
  2. Step 2: Convert to fraction form
    598,751.20/898,126.80 = 543,638.80/x
  3. Step 3: Cross multiply
    598,751.20x = 898,126.80 × 543,638.80
  4. Step 4: Simplify right side
    598,751.20x = 488,256,575,799.84
  5. Step 5: Solve for x
    x = 488,256,575,799.84/598,751.20
  6. Step 6: Final answer
    x = 815,458.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.