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Finding the Fourth Proportional to 480,010.80, 719,440.20 and 199,383.60

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Solution

The fourth proportional to 480,010.80, 719,440.20 and 199,383.60 is: 298,836.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,010.80 : 719,440.20 = 199,383.60 : x
  2. Step 2: Convert to fraction form
    480,010.80/719,440.20 = 199,383.60/x
  3. Step 3: Cross multiply
    480,010.80x = 719,440.20 × 199,383.60
  4. Step 4: Simplify right side
    480,010.80x = 143,444,577,060.72
  5. Step 5: Solve for x
    x = 143,444,577,060.72/480,010.80
  6. Step 6: Final answer
    x = 298,836.15

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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.