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Finding the Fourth Proportional to 462,447.58, 638,280.59 and 281,121.13

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Solution

The fourth proportional to 462,447.58, 638,280.59 and 281,121.13 is: 388,009.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,447.58 : 638,280.59 = 281,121.13 : x
  2. Step 2: Convert to fraction form
    462,447.58/638,280.59 = 281,121.13/x
  3. Step 3: Cross multiply
    462,447.58x = 638,280.59 × 281,121.13
  4. Step 4: Simplify right side
    462,447.58x = 179,434,157,526.46
  5. Step 5: Solve for x
    x = 179,434,157,526.46/462,447.58
  6. Step 6: Final answer
    x = 388,009.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.