Home / 805,339.87-1,208,885.07-325,897.66

Finding the Fourth Proportional to 805,339.87, 1,208,885.07 and 325,897.66

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Solution

The fourth proportional to 805,339.87, 1,208,885.07 and 325,897.66 is: 489,200.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,339.87 : 1,208,885.07 = 325,897.66 : x
  2. Step 2: Convert to fraction form
    805,339.87/1,208,885.07 = 325,897.66/x
  3. Step 3: Cross multiply
    805,339.87x = 1,208,885.07 × 325,897.66
  4. Step 4: Simplify right side
    805,339.87x = 393,972,815,521.94
  5. Step 5: Solve for x
    x = 393,972,815,521.94/805,339.87
  6. Step 6: Final answer
    x = 489,200.68

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Double scale
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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.