Home / 805,524.80-1,207,250.40-489,646.40

Finding the Fourth Proportional to 805,524.80, 1,207,250.40 and 489,646.40

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Solution

The fourth proportional to 805,524.80, 1,207,250.40 and 489,646.40 is: 733,839.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,524.80 : 1,207,250.40 = 489,646.40 : x
  2. Step 2: Convert to fraction form
    805,524.80/1,207,250.40 = 489,646.40/x
  3. Step 3: Cross multiply
    805,524.80x = 1,207,250.40 × 489,646.40
  4. Step 4: Simplify right side
    805,524.80x = 591,125,812,258.56
  5. Step 5: Solve for x
    x = 591,125,812,258.56/805,524.80
  6. Step 6: Final answer
    x = 733,839.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.