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Finding the Fourth Proportional to 546,783.60, 820,138.95 and 262,677.72

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Solution

The fourth proportional to 546,783.60, 820,138.95 and 262,677.72 is: 393,999.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,783.60 : 820,138.95 = 262,677.72 : x
  2. Step 2: Convert to fraction form
    546,783.60/820,138.95 = 262,677.72/x
  3. Step 3: Cross multiply
    546,783.60x = 820,138.95 × 262,677.72
  4. Step 4: Simplify right side
    546,783.60x = 215,432,229,469.19
  5. Step 5: Solve for x
    x = 215,432,229,469.19/546,783.60
  6. Step 6: Final answer
    x = 393,999.07

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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.