Home / 897,112.25-1,238,044.80-489,236.45

Finding the Fourth Proportional to 897,112.25, 1,238,044.80 and 489,236.45

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Solution

The fourth proportional to 897,112.25, 1,238,044.80 and 489,236.45 is: 675,162.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,112.25 : 1,238,044.80 = 489,236.45 : x
  2. Step 2: Convert to fraction form
    897,112.25/1,238,044.80 = 489,236.45/x
  3. Step 3: Cross multiply
    897,112.25x = 1,238,044.80 × 489,236.45
  4. Step 4: Simplify right side
    897,112.25x = 605,696,636,702.74
  5. Step 5: Solve for x
    x = 605,696,636,702.74/897,112.25
  6. Step 6: Final answer
    x = 675,162.60

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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.