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Finding the Fourth Proportional to 548,720.10, 823,080.15 and 489,233.70

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Solution

The fourth proportional to 548,720.10, 823,080.15 and 489,233.70 is: 733,850.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,720.10 : 823,080.15 = 489,233.70 : x
  2. Step 2: Convert to fraction form
    548,720.10/823,080.15 = 489,233.70/x
  3. Step 3: Cross multiply
    548,720.10x = 823,080.15 × 489,233.70
  4. Step 4: Simplify right side
    548,720.10x = 402,678,547,181.06
  5. Step 5: Solve for x
    x = 402,678,547,181.06/548,720.10
  6. Step 6: Final answer
    x = 733,850.55

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Similar ratio
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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.