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Finding the Fourth Proportional to 638,201.12, 880,759.08 and 366,357

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Solution

The fourth proportional to 638,201.12, 880,759.08 and 366,357 is: 505,596.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,201.12 : 880,759.08 = 366,357 : x
  2. Step 2: Convert to fraction form
    638,201.12/880,759.08 = 366,357/x
  3. Step 3: Cross multiply
    638,201.12x = 880,759.08 × 366,357
  4. Step 4: Simplify right side
    638,201.12x = 322,672,254,271.56
  5. Step 5: Solve for x
    x = 322,672,254,271.56/638,201.12
  6. Step 6: Final answer
    x = 505,596.50

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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.