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Finding the Fourth Proportional to 480,462.54, 720,843.73 and 143,516.48

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Solution

The fourth proportional to 480,462.54, 720,843.73 and 143,516.48 is: 215,319.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,462.54 : 720,843.73 = 143,516.48 : x
  2. Step 2: Convert to fraction form
    480,462.54/720,843.73 = 143,516.48/x
  3. Step 3: Cross multiply
    480,462.54x = 720,843.73 × 143,516.48
  4. Step 4: Simplify right side
    480,462.54x = 103,452,954,851.41
  5. Step 5: Solve for x
    x = 103,452,954,851.41/480,462.54
  6. Step 6: Final answer
    x = 215,319.50

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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.