Home / 897,375.60-1,238,382.20-489,486.22

Finding the Fourth Proportional to 897,375.60, 1,238,382.20 and 489,486.22

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Solution

The fourth proportional to 897,375.60, 1,238,382.20 and 489,486.22 is: 675,493.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,375.60 : 1,238,382.20 = 489,486.22 : x
  2. Step 2: Convert to fraction form
    897,375.60/1,238,382.20 = 489,486.22/x
  3. Step 3: Cross multiply
    897,375.60x = 1,238,382.20 × 489,486.22
  4. Step 4: Simplify right side
    897,375.60x = 606,171,020,121.04
  5. Step 5: Solve for x
    x = 606,171,020,121.04/897,375.60
  6. Step 6: Final answer
    x = 675,493.09

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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.