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Finding the Fourth Proportional to 605,198.70, 908,672.85 and 456,482.70

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Solution

The fourth proportional to 605,198.70, 908,672.85 and 456,482.70 is: 685,383.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,198.70 : 908,672.85 = 456,482.70 : x
  2. Step 2: Convert to fraction form
    605,198.70/908,672.85 = 456,482.70/x
  3. Step 3: Cross multiply
    605,198.70x = 908,672.85 × 456,482.70
  4. Step 4: Simplify right side
    605,198.70x = 414,793,435,984.70
  5. Step 5: Solve for x
    x = 414,793,435,984.70/605,198.70
  6. Step 6: Final answer
    x = 685,383.88

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1.5x scale

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.