Home / 834,319.31-1,151,369.48-490,169.57

Finding the Fourth Proportional to 834,319.31, 1,151,369.48 and 490,169.57

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Solution

The fourth proportional to 834,319.31, 1,151,369.48 and 490,169.57 is: 676,439.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    834,319.31 : 1,151,369.48 = 490,169.57 : x
  2. Step 2: Convert to fraction form
    834,319.31/1,151,369.48 = 490,169.57/x
  3. Step 3: Cross multiply
    834,319.31x = 1,151,369.48 × 490,169.57
  4. Step 4: Simplify right side
    834,319.31x = 564,366,278,391.30
  5. Step 5: Solve for x
    x = 564,366,278,391.30/834,319.31
  6. Step 6: Final answer
    x = 676,439.19

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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.