Home / 421,202.08-580,924.40-318,180.04

Finding the Fourth Proportional to 421,202.08, 580,924.40 and 318,180.04

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Solution

The fourth proportional to 421,202.08, 580,924.40 and 318,180.04 is: 438,835.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,202.08 : 580,924.40 = 318,180.04 : x
  2. Step 2: Convert to fraction form
    421,202.08/580,924.40 = 318,180.04/x
  3. Step 3: Cross multiply
    421,202.08x = 580,924.40 × 318,180.04
  4. Step 4: Simplify right side
    421,202.08x = 184,838,548,828.98
  5. Step 5: Solve for x
    x = 184,838,548,828.98/421,202.08
  6. Step 6: Final answer
    x = 438,835.79

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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.