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Finding the Fourth Proportional to 638,722.22, 957,697.41 and 254,530.17

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Solution

The fourth proportional to 638,722.22, 957,697.41 and 254,530.17 is: 381,641.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,722.22 : 957,697.41 = 254,530.17 : x
  2. Step 2: Convert to fraction form
    638,722.22/957,697.41 = 254,530.17/x
  3. Step 3: Cross multiply
    638,722.22x = 957,697.41 × 254,530.17
  4. Step 4: Simplify right side
    638,722.22x = 243,762,879,787.37
  5. Step 5: Solve for x
    x = 243,762,879,787.37/638,722.22
  6. Step 6: Final answer
    x = 381,641.46

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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.