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Finding the Fourth Proportional to 478,604.32, 660,442.72 and 263,744.34

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Solution

The fourth proportional to 478,604.32, 660,442.72 and 263,744.34 is: 363,949.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,604.32 : 660,442.72 = 263,744.34 : x
  2. Step 2: Convert to fraction form
    478,604.32/660,442.72 = 263,744.34/x
  3. Step 3: Cross multiply
    478,604.32x = 660,442.72 × 263,744.34
  4. Step 4: Simplify right side
    478,604.32x = 174,188,029,294.21
  5. Step 5: Solve for x
    x = 174,188,029,294.21/478,604.32
  6. Step 6: Final answer
    x = 363,949.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.