Home / 896,972.80-1,237,828.24-489,081.36

Finding the Fourth Proportional to 896,972.80, 1,237,828.24 and 489,081.36

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Solution

The fourth proportional to 896,972.80, 1,237,828.24 and 489,081.36 is: 674,935.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,972.80 : 1,237,828.24 = 489,081.36 : x
  2. Step 2: Convert to fraction form
    896,972.80/1,237,828.24 = 489,081.36/x
  3. Step 3: Cross multiply
    896,972.80x = 1,237,828.24 × 489,081.36
  4. Step 4: Simplify right side
    896,972.80x = 605,398,719,065.61
  5. Step 5: Solve for x
    x = 605,398,719,065.61/896,972.80
  6. Step 6: Final answer
    x = 674,935.43

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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.