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Finding the Fourth Proportional to 480,610.44, 720,908.76 and 143,643.60

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Solution

The fourth proportional to 480,610.44, 720,908.76 and 143,643.60 is: 215,463.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,610.44 : 720,908.76 = 143,643.60 : x
  2. Step 2: Convert to fraction form
    480,610.44/720,908.76 = 143,643.60/x
  3. Step 3: Cross multiply
    480,610.44x = 720,908.76 × 143,643.60
  4. Step 4: Simplify right side
    480,610.44x = 103,553,929,557.94
  5. Step 5: Solve for x
    x = 103,553,929,557.94/480,610.44
  6. Step 6: Final answer
    x = 215,463.34

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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.