Home / 897,856.06-1,239,067.70-489,984.24

Finding the Fourth Proportional to 897,856.06, 1,239,067.70 and 489,984.24

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Solution

The fourth proportional to 897,856.06, 1,239,067.70 and 489,984.24 is: 676,192.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,856.06 : 1,239,067.70 = 489,984.24 : x
  2. Step 2: Convert to fraction form
    897,856.06/1,239,067.70 = 489,984.24/x
  3. Step 3: Cross multiply
    897,856.06x = 1,239,067.70 × 489,984.24
  4. Step 4: Simplify right side
    897,856.06x = 607,123,644,680.57
  5. Step 5: Solve for x
    x = 607,123,644,680.57/897,856.06
  6. Step 6: Final answer
    x = 676,192.62

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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.