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Finding the Fourth Proportional to 565,226.80, 847,840.20 and 489,119.20

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Solution

The fourth proportional to 565,226.80, 847,840.20 and 489,119.20 is: 733,678.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,226.80 : 847,840.20 = 489,119.20 : x
  2. Step 2: Convert to fraction form
    565,226.80/847,840.20 = 489,119.20/x
  3. Step 3: Cross multiply
    565,226.80x = 847,840.20 × 489,119.20
  4. Step 4: Simplify right side
    565,226.80x = 414,694,920,351.84
  5. Step 5: Solve for x
    x = 414,694,920,351.84/565,226.80
  6. Step 6: Final answer
    x = 733,678.80

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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.