Home / 812,330.34-1,121,091.06-449,754.19

Finding the Fourth Proportional to 812,330.34, 1,121,091.06 and 449,754.19

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Solution

The fourth proportional to 812,330.34, 1,121,091.06 and 449,754.19 is: 620,702.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,330.34 : 1,121,091.06 = 449,754.19 : x
  2. Step 2: Convert to fraction form
    812,330.34/1,121,091.06 = 449,754.19/x
  3. Step 3: Cross multiply
    812,330.34x = 1,121,091.06 × 449,754.19
  4. Step 4: Simplify right side
    812,330.34x = 504,215,400,490.39
  5. Step 5: Solve for x
    x = 504,215,400,490.39/812,330.34
  6. Step 6: Final answer
    x = 620,702.41

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.