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Finding the Fourth Proportional to 480,278.67, 720,542.43 and 255,454.05

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Solution

The fourth proportional to 480,278.67, 720,542.43 and 255,454.05 is: 383,247.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,278.67 : 720,542.43 = 255,454.05 : x
  2. Step 2: Convert to fraction form
    480,278.67/720,542.43 = 255,454.05/x
  3. Step 3: Cross multiply
    480,278.67x = 720,542.43 × 255,454.05
  4. Step 4: Simplify right side
    480,278.67x = 184,065,481,940.34
  5. Step 5: Solve for x
    x = 184,065,481,940.34/480,278.67
  6. Step 6: Final answer
    x = 383,247.26

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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.