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Finding the Fourth Proportional to 511,232.70, 766,849.05 and 322,275.90

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Solution

The fourth proportional to 511,232.70, 766,849.05 and 322,275.90 is: 483,413.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,232.70 : 766,849.05 = 322,275.90 : x
  2. Step 2: Convert to fraction form
    511,232.70/766,849.05 = 322,275.90/x
  3. Step 3: Cross multiply
    511,232.70x = 766,849.05 × 322,275.90
  4. Step 4: Simplify right side
    511,232.70x = 247,136,967,752.90
  5. Step 5: Solve for x
    x = 247,136,967,752.90/511,232.70
  6. Step 6: Final answer
    x = 483,413.85

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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.