Home / 981,051-1,470,782.16-306,785.04

Finding the Fourth Proportional to 981,051, 1,470,782.16 and 306,785.04

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Solution

The fourth proportional to 981,051, 1,470,782.16 and 306,785.04 is: 459,929.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,051 : 1,470,782.16 = 306,785.04 : x
  2. Step 2: Convert to fraction form
    981,051/1,470,782.16 = 306,785.04/x
  3. Step 3: Cross multiply
    981,051x = 1,470,782.16 × 306,785.04
  4. Step 4: Simplify right side
    981,051x = 451,213,963,786.89
  5. Step 5: Solve for x
    x = 451,213,963,786.89/981,051
  6. Step 6: Final answer
    x = 459,929.16

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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.