Home / 378,305.04-565,784.40-336,478.56

Finding the Fourth Proportional to 378,305.04, 565,784.40 and 336,478.56

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Solution

The fourth proportional to 378,305.04, 565,784.40 and 336,478.56 is: 503,229.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,305.04 : 565,784.40 = 336,478.56 : x
  2. Step 2: Convert to fraction form
    378,305.04/565,784.40 = 336,478.56/x
  3. Step 3: Cross multiply
    378,305.04x = 565,784.40 × 336,478.56
  4. Step 4: Simplify right side
    378,305.04x = 190,374,320,182.46
  5. Step 5: Solve for x
    x = 190,374,320,182.46/378,305.04
  6. Step 6: Final answer
    x = 503,229.67

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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.