Home / 654,409.14-981,585.15-205,119.77

Finding the Fourth Proportional to 654,409.14, 981,585.15 and 205,119.77

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Solution

The fourth proportional to 654,409.14, 981,585.15 and 205,119.77 is: 307,670.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,409.14 : 981,585.15 = 205,119.77 : x
  2. Step 2: Convert to fraction form
    654,409.14/981,585.15 = 205,119.77/x
  3. Step 3: Cross multiply
    654,409.14x = 981,585.15 × 205,119.77
  4. Step 4: Simplify right side
    654,409.14x = 201,342,515,295.49
  5. Step 5: Solve for x
    x = 201,342,515,295.49/654,409.14
  6. Step 6: Final answer
    x = 307,670.70

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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.