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Finding the Fourth Proportional to 480,654, 720,990.72 and 148,230

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Solution

The fourth proportional to 480,654, 720,990.72 and 148,230 is: 222,348.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,654 : 720,990.72 = 148,230 : x
  2. Step 2: Convert to fraction form
    480,654/720,990.72 = 148,230/x
  3. Step 3: Cross multiply
    480,654x = 720,990.72 × 148,230
  4. Step 4: Simplify right side
    480,654x = 106,872,454,425.60
  5. Step 5: Solve for x
    x = 106,872,454,425.60/480,654
  6. Step 6: Final answer
    x = 222,348.00

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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.