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Finding the Fourth Proportional to 475,436.86, 656,005.90 and 281,759.20

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Solution

The fourth proportional to 475,436.86, 656,005.90 and 281,759.20 is: 388,770.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,436.86 : 656,005.90 = 281,759.20 : x
  2. Step 2: Convert to fraction form
    475,436.86/656,005.90 = 281,759.20/x
  3. Step 3: Cross multiply
    475,436.86x = 656,005.90 × 281,759.20
  4. Step 4: Simplify right side
    475,436.86x = 184,835,693,594.85
  5. Step 5: Solve for x
    x = 184,835,693,594.85/475,436.86
  6. Step 6: Final answer
    x = 388,770.23

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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.