Home / 547,747.20-821,620.80-464,803.20

Finding the Fourth Proportional to 547,747.20, 821,620.80 and 464,803.20

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Solution

The fourth proportional to 547,747.20, 821,620.80 and 464,803.20 is: 697,204.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,747.20 : 821,620.80 = 464,803.20 : x
  2. Step 2: Convert to fraction form
    547,747.20/821,620.80 = 464,803.20/x
  3. Step 3: Cross multiply
    547,747.20x = 821,620.80 × 464,803.20
  4. Step 4: Simplify right side
    547,747.20x = 381,891,977,026.56
  5. Step 5: Solve for x
    x = 381,891,977,026.56/547,747.20
  6. Step 6: Final answer
    x = 697,204.80

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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.