Home / 481,985.20-722,977.80-405,002.80

Finding the Fourth Proportional to 481,985.20, 722,977.80 and 405,002.80

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Solution

The fourth proportional to 481,985.20, 722,977.80 and 405,002.80 is: 607,504.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,985.20 : 722,977.80 = 405,002.80 : x
  2. Step 2: Convert to fraction form
    481,985.20/722,977.80 = 405,002.80/x
  3. Step 3: Cross multiply
    481,985.20x = 722,977.80 × 405,002.80
  4. Step 4: Simplify right side
    481,985.20x = 292,808,033,337.84
  5. Step 5: Solve for x
    x = 292,808,033,337.84/481,985.20
  6. Step 6: Final answer
    x = 607,504.20

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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.