Home / 981,376.43-1,472,062.80-307,509.35

Finding the Fourth Proportional to 981,376.43, 1,472,062.80 and 307,509.35

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Solution

The fourth proportional to 981,376.43, 1,472,062.80 and 307,509.35 is: 461,263.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,376.43 : 1,472,062.80 = 307,509.35 : x
  2. Step 2: Convert to fraction form
    981,376.43/1,472,062.80 = 307,509.35/x
  3. Step 3: Cross multiply
    981,376.43x = 1,472,062.80 × 307,509.35
  4. Step 4: Simplify right side
    981,376.43x = 452,673,067,426.87
  5. Step 5: Solve for x
    x = 452,673,067,426.87/981,376.43
  6. Step 6: Final answer
    x = 461,263.44

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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.