Home / 981,776.08-1,472,491.32-262,126.72

Finding the Fourth Proportional to 981,776.08, 1,472,491.32 and 262,126.72

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Solution

The fourth proportional to 981,776.08, 1,472,491.32 and 262,126.72 is: 393,143.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,776.08 : 1,472,491.32 = 262,126.72 : x
  2. Step 2: Convert to fraction form
    981,776.08/1,472,491.32 = 262,126.72/x
  3. Step 3: Cross multiply
    981,776.08x = 1,472,491.32 × 262,126.72
  4. Step 4: Simplify right side
    981,776.08x = 385,979,319,940.07
  5. Step 5: Solve for x
    x = 385,979,319,940.07/981,776.08
  6. Step 6: Final answer
    x = 393,143.94

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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.