Home / 499,390.59-689,158.68-269,947.86

Finding the Fourth Proportional to 499,390.59, 689,158.68 and 269,947.86

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Solution

The fourth proportional to 499,390.59, 689,158.68 and 269,947.86 is: 372,527.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,390.59 : 689,158.68 = 269,947.86 : x
  2. Step 2: Convert to fraction form
    499,390.59/689,158.68 = 269,947.86/x
  3. Step 3: Cross multiply
    499,390.59x = 689,158.68 × 269,947.86
  4. Step 4: Simplify right side
    499,390.59x = 186,036,914,603.01
  5. Step 5: Solve for x
    x = 186,036,914,603.01/499,390.59
  6. Step 6: Final answer
    x = 372,527.87

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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.