Home / 368,910.45-553,365.78-284,793.40

Finding the Fourth Proportional to 368,910.45, 553,365.78 and 284,793.40

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Solution

The fourth proportional to 368,910.45, 553,365.78 and 284,793.40 is: 427,190.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,910.45 : 553,365.78 = 284,793.40 : x
  2. Step 2: Convert to fraction form
    368,910.45/553,365.78 = 284,793.40/x
  3. Step 3: Cross multiply
    368,910.45x = 553,365.78 × 284,793.40
  4. Step 4: Simplify right side
    368,910.45x = 157,594,921,553.58
  5. Step 5: Solve for x
    x = 157,594,921,553.58/368,910.45
  6. Step 6: Final answer
    x = 427,190.18

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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.