Home / 897,142.17-1,238,040.68-489,247.23

Finding the Fourth Proportional to 897,142.17, 1,238,040.68 and 489,247.23

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Solution

The fourth proportional to 897,142.17, 1,238,040.68 and 489,247.23 is: 675,152.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,142.17 : 1,238,040.68 = 489,247.23 : x
  2. Step 2: Convert to fraction form
    897,142.17/1,238,040.68 = 489,247.23/x
  3. Step 3: Cross multiply
    897,142.17x = 1,238,040.68 × 489,247.23
  4. Step 4: Simplify right side
    897,142.17x = 605,707,970,871.08
  5. Step 5: Solve for x
    x = 605,707,970,871.08/897,142.17
  6. Step 6: Final answer
    x = 675,152.71

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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.