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Finding the Fourth Proportional to 663,191.48, 994,048.50 and 263,725.40

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Solution

The fourth proportional to 663,191.48, 994,048.50 and 263,725.40 is: 395,294.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,191.48 : 994,048.50 = 263,725.40 : x
  2. Step 2: Convert to fraction form
    663,191.48/994,048.50 = 263,725.40/x
  3. Step 3: Cross multiply
    663,191.48x = 994,048.50 × 263,725.40
  4. Step 4: Simplify right side
    663,191.48x = 262,155,838,281.90
  5. Step 5: Solve for x
    x = 262,155,838,281.90/663,191.48
  6. Step 6: Final answer
    x = 395,294.34

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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.