Home / 808,612.80-1,212,919.20-247,574.40

Finding the Fourth Proportional to 808,612.80, 1,212,919.20 and 247,574.40

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Solution

The fourth proportional to 808,612.80, 1,212,919.20 and 247,574.40 is: 371,361.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,612.80 : 1,212,919.20 = 247,574.40 : x
  2. Step 2: Convert to fraction form
    808,612.80/1,212,919.20 = 247,574.40/x
  3. Step 3: Cross multiply
    808,612.80x = 1,212,919.20 × 247,574.40
  4. Step 4: Simplify right side
    808,612.80x = 300,287,743,188.48
  5. Step 5: Solve for x
    x = 300,287,743,188.48/808,612.80
  6. Step 6: Final answer
    x = 371,361.60

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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.