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Finding the Fourth Proportional to 480,552.42, 720,932.06 and 143,620.46

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Solution

The fourth proportional to 480,552.42, 720,932.06 and 143,620.46 is: 215,461.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,552.42 : 720,932.06 = 143,620.46 : x
  2. Step 2: Convert to fraction form
    480,552.42/720,932.06 = 143,620.46/x
  3. Step 3: Cross multiply
    480,552.42x = 720,932.06 × 143,620.46
  4. Step 4: Simplify right side
    480,552.42x = 103,540,594,085.95
  5. Step 5: Solve for x
    x = 103,540,594,085.95/480,552.42
  6. Step 6: Final answer
    x = 215,461.60

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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.