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Finding the Fourth Proportional to 480,781.94, 720,976.08 and 214,360.25

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Solution

The fourth proportional to 480,781.94, 720,976.08 and 214,360.25 is: 321,452.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,781.94 : 720,976.08 = 214,360.25 : x
  2. Step 2: Convert to fraction form
    480,781.94/720,976.08 = 214,360.25/x
  3. Step 3: Cross multiply
    480,781.94x = 720,976.08 × 214,360.25
  4. Step 4: Simplify right side
    480,781.94x = 154,548,612,752.82
  5. Step 5: Solve for x
    x = 154,548,612,752.82/480,781.94
  6. Step 6: Final answer
    x = 321,452.62

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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.