Home / 514,822.20-772,233.30-479,830.20

Finding the Fourth Proportional to 514,822.20, 772,233.30 and 479,830.20

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Solution

The fourth proportional to 514,822.20, 772,233.30 and 479,830.20 is: 719,745.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,822.20 : 772,233.30 = 479,830.20 : x
  2. Step 2: Convert to fraction form
    514,822.20/772,233.30 = 479,830.20/x
  3. Step 3: Cross multiply
    514,822.20x = 772,233.30 × 479,830.20
  4. Step 4: Simplify right side
    514,822.20x = 370,540,858,785.66
  5. Step 5: Solve for x
    x = 370,540,858,785.66/514,822.20
  6. Step 6: Final answer
    x = 719,745.30

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Double scale
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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.