Home / 743,098.12-1,025,900.49-489,187.42

Finding the Fourth Proportional to 743,098.12, 1,025,900.49 and 489,187.42

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Solution

The fourth proportional to 743,098.12, 1,025,900.49 and 489,187.42 is: 675,358.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,098.12 : 1,025,900.49 = 489,187.42 : x
  2. Step 2: Convert to fraction form
    743,098.12/1,025,900.49 = 489,187.42/x
  3. Step 3: Cross multiply
    743,098.12x = 1,025,900.49 × 489,187.42
  4. Step 4: Simplify right side
    743,098.12x = 501,857,613,879.84
  5. Step 5: Solve for x
    x = 501,857,613,879.84/743,098.12
  6. Step 6: Final answer
    x = 675,358.48

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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.