Home / 891,687.68-1,230,564.48-489,294.08

Finding the Fourth Proportional to 891,687.68, 1,230,564.48 and 489,294.08

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Solution

The fourth proportional to 891,687.68, 1,230,564.48 and 489,294.08 is: 675,245.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,687.68 : 1,230,564.48 = 489,294.08 : x
  2. Step 2: Convert to fraction form
    891,687.68/1,230,564.48 = 489,294.08/x
  3. Step 3: Cross multiply
    891,687.68x = 1,230,564.48 × 489,294.08
  4. Step 4: Simplify right side
    891,687.68x = 602,107,915,122.28
  5. Step 5: Solve for x
    x = 602,107,915,122.28/891,687.68
  6. Step 6: Final answer
    x = 675,245.30

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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.