Home / 654,319.65-981,479.61-205,040.43

Finding the Fourth Proportional to 654,319.65, 981,479.61 and 205,040.43

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Solution

The fourth proportional to 654,319.65, 981,479.61 and 205,040.43 is: 307,560.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,319.65 : 981,479.61 = 205,040.43 : x
  2. Step 2: Convert to fraction form
    654,319.65/981,479.61 = 205,040.43/x
  3. Step 3: Cross multiply
    654,319.65x = 981,479.61 × 205,040.43
  4. Step 4: Simplify right side
    654,319.65x = 201,243,001,270.63
  5. Step 5: Solve for x
    x = 201,243,001,270.63/654,319.65
  6. Step 6: Final answer
    x = 307,560.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.