Home / 897,617.43-1,238,710.79-489,719.54

Finding the Fourth Proportional to 897,617.43, 1,238,710.79 and 489,719.54

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Solution

The fourth proportional to 897,617.43, 1,238,710.79 and 489,719.54 is: 675,812.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,617.43 : 1,238,710.79 = 489,719.54 : x
  2. Step 2: Convert to fraction form
    897,617.43/1,238,710.79 = 489,719.54/x
  3. Step 3: Cross multiply
    897,617.43x = 1,238,710.79 × 489,719.54
  4. Step 4: Simplify right side
    897,617.43x = 606,620,882,592.91
  5. Step 5: Solve for x
    x = 606,620,882,592.91/897,617.43
  6. Step 6: Final answer
    x = 675,812.28

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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.