Home / 479,723.50-662,076.75-278,519.50

Finding the Fourth Proportional to 479,723.50, 662,076.75 and 278,519.50

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Solution

The fourth proportional to 479,723.50, 662,076.75 and 278,519.50 is: 384,390.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,723.50 : 662,076.75 = 278,519.50 : x
  2. Step 2: Convert to fraction form
    479,723.50/662,076.75 = 278,519.50/x
  3. Step 3: Cross multiply
    479,723.50x = 662,076.75 × 278,519.50
  4. Step 4: Simplify right side
    479,723.50x = 184,401,285,371.63
  5. Step 5: Solve for x
    x = 184,401,285,371.63/479,723.50
  6. Step 6: Final answer
    x = 384,390.77

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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.