Home / 499,723.14-689,615.87-270,280.68

Finding the Fourth Proportional to 499,723.14, 689,615.87 and 270,280.68

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Solution

The fourth proportional to 499,723.14, 689,615.87 and 270,280.68 is: 372,986.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,723.14 : 689,615.87 = 270,280.68 : x
  2. Step 2: Convert to fraction form
    499,723.14/689,615.87 = 270,280.68/x
  3. Step 3: Cross multiply
    499,723.14x = 689,615.87 × 270,280.68
  4. Step 4: Simplify right side
    499,723.14x = 186,389,846,282.39
  5. Step 5: Solve for x
    x = 186,389,846,282.39/499,723.14
  6. Step 6: Final answer
    x = 372,986.22

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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.