Home / 813,319.08-1,220,233.59-489,460.53

Finding the Fourth Proportional to 813,319.08, 1,220,233.59 and 489,460.53

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Solution

The fourth proportional to 813,319.08, 1,220,233.59 and 489,460.53 is: 734,344.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,319.08 : 1,220,233.59 = 489,460.53 : x
  2. Step 2: Convert to fraction form
    813,319.08/1,220,233.59 = 489,460.53/x
  3. Step 3: Cross multiply
    813,319.08x = 1,220,233.59 × 489,460.53
  4. Step 4: Simplify right side
    813,319.08x = 597,256,179,685.20
  5. Step 5: Solve for x
    x = 597,256,179,685.20/813,319.08
  6. Step 6: Final answer
    x = 734,344.24

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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.