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Finding the Fourth Proportional to 480,624.20, 720,936.30 and 231,792.20

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Solution

The fourth proportional to 480,624.20, 720,936.30 and 231,792.20 is: 347,688.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,624.20 : 720,936.30 = 231,792.20 : x
  2. Step 2: Convert to fraction form
    480,624.20/720,936.30 = 231,792.20/x
  3. Step 3: Cross multiply
    480,624.20x = 720,936.30 × 231,792.20
  4. Step 4: Simplify right side
    480,624.20x = 167,107,411,036.86
  5. Step 5: Solve for x
    x = 167,107,411,036.86/480,624.20
  6. Step 6: Final answer
    x = 347,688.30

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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.