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Finding the Fourth Proportional to 416,460.80, 624,691.20 and 179,638.40

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Solution

The fourth proportional to 416,460.80, 624,691.20 and 179,638.40 is: 269,457.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,460.80 : 624,691.20 = 179,638.40 : x
  2. Step 2: Convert to fraction form
    416,460.80/624,691.20 = 179,638.40/x
  3. Step 3: Cross multiply
    416,460.80x = 624,691.20 × 179,638.40
  4. Step 4: Simplify right side
    416,460.80x = 112,218,527,662.08
  5. Step 5: Solve for x
    x = 112,218,527,662.08/416,460.80
  6. Step 6: Final answer
    x = 269,457.60

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1.5x scale

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.