Home / 897,392.71-1,238,405.79-489,503.44

Finding the Fourth Proportional to 897,392.71, 1,238,405.79 and 489,503.44

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Solution

The fourth proportional to 897,392.71, 1,238,405.79 and 489,503.44 is: 675,516.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,392.71 : 1,238,405.79 = 489,503.44 : x
  2. Step 2: Convert to fraction form
    897,392.71/1,238,405.79 = 489,503.44/x
  3. Step 3: Cross multiply
    897,392.71x = 1,238,405.79 × 489,503.44
  4. Step 4: Simplify right side
    897,392.71x = 606,203,894,320.92
  5. Step 5: Solve for x
    x = 606,203,894,320.92/897,392.71
  6. Step 6: Final answer
    x = 675,516.85

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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.