Home / 981,573.98-1,472,379.42-307,640.36

Finding the Fourth Proportional to 981,573.98, 1,472,379.42 and 307,640.36

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Solution

The fourth proportional to 981,573.98, 1,472,379.42 and 307,640.36 is: 461,466.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,573.98 : 1,472,379.42 = 307,640.36 : x
  2. Step 2: Convert to fraction form
    981,573.98/1,472,379.42 = 307,640.36/x
  3. Step 3: Cross multiply
    981,573.98x = 1,472,379.42 × 307,640.36
  4. Step 4: Simplify right side
    981,573.98x = 452,963,334,825.39
  5. Step 5: Solve for x
    x = 452,963,334,825.39/981,573.98
  6. Step 6: Final answer
    x = 461,466.32

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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.