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Finding the Fourth Proportional to 427,168.80, 589,485.62 and 304,886.34

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Solution

The fourth proportional to 427,168.80, 589,485.62 and 304,886.34 is: 420,737.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,168.80 : 589,485.62 = 304,886.34 : x
  2. Step 2: Convert to fraction form
    427,168.80/589,485.62 = 304,886.34/x
  3. Step 3: Cross multiply
    427,168.80x = 589,485.62 × 304,886.34
  4. Step 4: Simplify right side
    427,168.80x = 179,726,113,164.43
  5. Step 5: Solve for x
    x = 179,726,113,164.43/427,168.80
  6. Step 6: Final answer
    x = 420,737.92

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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.