Home / 823,740.20-1,235,610.30-507,170.60

Finding the Fourth Proportional to 823,740.20, 1,235,610.30 and 507,170.60

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Solution

The fourth proportional to 823,740.20, 1,235,610.30 and 507,170.60 is: 760,755.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,740.20 : 1,235,610.30 = 507,170.60 : x
  2. Step 2: Convert to fraction form
    823,740.20/1,235,610.30 = 507,170.60/x
  3. Step 3: Cross multiply
    823,740.20x = 1,235,610.30 × 507,170.60
  4. Step 4: Simplify right side
    823,740.20x = 626,665,217,217.18
  5. Step 5: Solve for x
    x = 626,665,217,217.18/823,740.20
  6. Step 6: Final answer
    x = 760,755.90

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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.