Home / 547,897.20-821,845.80-252,985.20

Finding the Fourth Proportional to 547,897.20, 821,845.80 and 252,985.20

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Solution

The fourth proportional to 547,897.20, 821,845.80 and 252,985.20 is: 379,477.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,897.20 : 821,845.80 = 252,985.20 : x
  2. Step 2: Convert to fraction form
    547,897.20/821,845.80 = 252,985.20/x
  3. Step 3: Cross multiply
    547,897.20x = 821,845.80 × 252,985.20
  4. Step 4: Simplify right side
    547,897.20x = 207,914,824,082.16
  5. Step 5: Solve for x
    x = 207,914,824,082.16/547,897.20
  6. Step 6: Final answer
    x = 379,477.80

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Similar ratio
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1.5x scale

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.