Home / 421,821.36-582,123.51-240,550.65

Finding the Fourth Proportional to 421,821.36, 582,123.51 and 240,550.65

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Solution

The fourth proportional to 421,821.36, 582,123.51 and 240,550.65 is: 331,965.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,821.36 : 582,123.51 = 240,550.65 : x
  2. Step 2: Convert to fraction form
    421,821.36/582,123.51 = 240,550.65/x
  3. Step 3: Cross multiply
    421,821.36x = 582,123.51 × 240,550.65
  4. Step 4: Simplify right side
    421,821.36x = 140,030,188,710.78
  5. Step 5: Solve for x
    x = 140,030,188,710.78/421,821.36
  6. Step 6: Final answer
    x = 331,965.62

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1.5x scale

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.