Home / 976,255.40-1,463,945.70-443,502.20

Finding the Fourth Proportional to 976,255.40, 1,463,945.70 and 443,502.20

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Solution

The fourth proportional to 976,255.40, 1,463,945.70 and 443,502.20 is: 665,054.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,255.40 : 1,463,945.70 = 443,502.20 : x
  2. Step 2: Convert to fraction form
    976,255.40/1,463,945.70 = 443,502.20/x
  3. Step 3: Cross multiply
    976,255.40x = 1,463,945.70 × 443,502.20
  4. Step 4: Simplify right side
    976,255.40x = 649,263,138,630.54
  5. Step 5: Solve for x
    x = 649,263,138,630.54/976,255.40
  6. Step 6: Final answer
    x = 665,054.59

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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.