Home / 897,040.38-1,237,906.71-489,141.20

Finding the Fourth Proportional to 897,040.38, 1,237,906.71 and 489,141.20

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Solution

The fourth proportional to 897,040.38, 1,237,906.71 and 489,141.20 is: 675,009.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,040.38 : 1,237,906.71 = 489,141.20 : x
  2. Step 2: Convert to fraction form
    897,040.38/1,237,906.71 = 489,141.20/x
  3. Step 3: Cross multiply
    897,040.38x = 1,237,906.71 × 489,141.20
  4. Step 4: Simplify right side
    897,040.38x = 605,511,167,427.92
  5. Step 5: Solve for x
    x = 605,511,167,427.92/897,040.38
  6. Step 6: Final answer
    x = 675,009.93

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Double scale
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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.