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Finding the Fourth Proportional to 480,026.80, 720,040.20 and 303,317.20

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Solution

The fourth proportional to 480,026.80, 720,040.20 and 303,317.20 is: 454,975.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,026.80 : 720,040.20 = 303,317.20 : x
  2. Step 2: Convert to fraction form
    480,026.80/720,040.20 = 303,317.20/x
  3. Step 3: Cross multiply
    480,026.80x = 720,040.20 × 303,317.20
  4. Step 4: Simplify right side
    480,026.80x = 218,400,577,351.44
  5. Step 5: Solve for x
    x = 218,400,577,351.44/480,026.80
  6. Step 6: Final answer
    x = 454,975.80

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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.