Home / 499,922.04-689,875.26-285,131.31

Finding the Fourth Proportional to 499,922.04, 689,875.26 and 285,131.31

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Solution

The fourth proportional to 499,922.04, 689,875.26 and 285,131.31 is: 393,471.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,922.04 : 689,875.26 = 285,131.31 : x
  2. Step 2: Convert to fraction form
    499,922.04/689,875.26 = 285,131.31/x
  3. Step 3: Cross multiply
    499,922.04x = 689,875.26 × 285,131.31
  4. Step 4: Simplify right side
    499,922.04x = 196,705,036,620.39
  5. Step 5: Solve for x
    x = 196,705,036,620.39/499,922.04
  6. Step 6: Final answer
    x = 393,471.42

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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.