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Finding the Fourth Proportional to 466,361.76, 643,628.88 and 285,179.52

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Solution

The fourth proportional to 466,361.76, 643,628.88 and 285,179.52 is: 393,578.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,361.76 : 643,628.88 = 285,179.52 : x
  2. Step 2: Convert to fraction form
    466,361.76/643,628.88 = 285,179.52/x
  3. Step 3: Cross multiply
    466,361.76x = 643,628.88 × 285,179.52
  4. Step 4: Simplify right side
    466,361.76x = 183,549,775,056.54
  5. Step 5: Solve for x
    x = 183,549,775,056.54/466,361.76
  6. Step 6: Final answer
    x = 393,578.10

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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.