Home / 651,815.20-977,431.20-252,323.20

Finding the Fourth Proportional to 651,815.20, 977,431.20 and 252,323.20

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Solution

The fourth proportional to 651,815.20, 977,431.20 and 252,323.20 is: 378,371.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,815.20 : 977,431.20 = 252,323.20 : x
  2. Step 2: Convert to fraction form
    651,815.20/977,431.20 = 252,323.20/x
  3. Step 3: Cross multiply
    651,815.20x = 977,431.20 × 252,323.20
  4. Step 4: Simplify right side
    651,815.20x = 246,628,568,163.84
  5. Step 5: Solve for x
    x = 246,628,568,163.84/651,815.20
  6. Step 6: Final answer
    x = 378,371.92

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Half scale
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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.