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Finding the Fourth Proportional to 475,515.45, 656,278.44 and 294,285.73

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Solution

The fourth proportional to 475,515.45, 656,278.44 and 294,285.73 is: 406,155.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,515.45 : 656,278.44 = 294,285.73 : x
  2. Step 2: Convert to fraction form
    475,515.45/656,278.44 = 294,285.73/x
  3. Step 3: Cross multiply
    475,515.45x = 656,278.44 × 294,285.73
  4. Step 4: Simplify right side
    475,515.45x = 193,133,379,798.66
  5. Step 5: Solve for x
    x = 193,133,379,798.66/475,515.45
  6. Step 6: Final answer
    x = 406,155.85

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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.