Home / 682,417.90-1,023,589.95-209,104.66

Finding the Fourth Proportional to 682,417.90, 1,023,589.95 and 209,104.66

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Solution

The fourth proportional to 682,417.90, 1,023,589.95 and 209,104.66 is: 313,645.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,417.90 : 1,023,589.95 = 209,104.66 : x
  2. Step 2: Convert to fraction form
    682,417.90/1,023,589.95 = 209,104.66/x
  3. Step 3: Cross multiply
    682,417.90x = 1,023,589.95 × 209,104.66
  4. Step 4: Simplify right side
    682,417.90x = 214,037,428,474.17
  5. Step 5: Solve for x
    x = 214,037,428,474.17/682,417.90
  6. Step 6: Final answer
    x = 313,645.68

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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.