Home / 651,846.40-977,939.70-252,500.20

Finding the Fourth Proportional to 651,846.40, 977,939.70 and 252,500.20

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Solution

The fourth proportional to 651,846.40, 977,939.70 and 252,500.20 is: 378,816.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,846.40 : 977,939.70 = 252,500.20 : x
  2. Step 2: Convert to fraction form
    651,846.40/977,939.70 = 252,500.20/x
  3. Step 3: Cross multiply
    651,846.40x = 977,939.70 × 252,500.20
  4. Step 4: Simplify right side
    651,846.40x = 246,929,969,837.94
  5. Step 5: Solve for x
    x = 246,929,969,837.94/651,846.40
  6. Step 6: Final answer
    x = 378,816.19

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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.