Home / 1,389,616.60-2,084,540.10-442,960.60

Finding the Fourth Proportional to 1,389,616.60, 2,084,540.10 and 442,960.60

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Solution

The fourth proportional to 1,389,616.60, 2,084,540.10 and 442,960.60 is: 664,477.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,616.60 : 2,084,540.10 = 442,960.60 : x
  2. Step 2: Convert to fraction form
    1,389,616.60/2,084,540.10 = 442,960.60/x
  3. Step 3: Cross multiply
    1,389,616.60x = 2,084,540.10 × 442,960.60
  4. Step 4: Simplify right side
    1,389,616.60x = 923,369,133,420.06
  5. Step 5: Solve for x
    x = 923,369,133,420.06/1,389,616.60
  6. Step 6: Final answer
    x = 664,477.62

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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.