Home / 421,586.06-581,786.43-240,327.50

Finding the Fourth Proportional to 421,586.06, 581,786.43 and 240,327.50

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Solution

The fourth proportional to 421,586.06, 581,786.43 and 240,327.50 is: 331,650.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,586.06 : 581,786.43 = 240,327.50 : x
  2. Step 2: Convert to fraction form
    421,586.06/581,786.43 = 240,327.50/x
  3. Step 3: Cross multiply
    421,586.06x = 581,786.43 × 240,327.50
  4. Step 4: Simplify right side
    421,586.06x = 139,819,278,255.83
  5. Step 5: Solve for x
    x = 139,819,278,255.83/421,586.06
  6. Step 6: Final answer
    x = 331,650.62

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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.