Home / 908,057.78-1,362,086.68-428,173.92

Finding the Fourth Proportional to 908,057.78, 1,362,086.68 and 428,173.92

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Solution

The fourth proportional to 908,057.78, 1,362,086.68 and 428,173.92 is: 642,260.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,057.78 : 1,362,086.68 = 428,173.92 : x
  2. Step 2: Convert to fraction form
    908,057.78/1,362,086.68 = 428,173.92/x
  3. Step 3: Cross multiply
    908,057.78x = 1,362,086.68 × 428,173.92
  4. Step 4: Simplify right side
    908,057.78x = 583,209,993,155.39
  5. Step 5: Solve for x
    x = 583,209,993,155.39/908,057.78
  6. Step 6: Final answer
    x = 642,260.88

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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.