Home / 981,840.69-1,472,917.91-342,328.48

Finding the Fourth Proportional to 981,840.69, 1,472,917.91 and 342,328.48

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Solution

The fourth proportional to 981,840.69, 1,472,917.91 and 342,328.48 is: 513,547.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,840.69 : 1,472,917.91 = 342,328.48 : x
  2. Step 2: Convert to fraction form
    981,840.69/1,472,917.91 = 342,328.48/x
  3. Step 3: Cross multiply
    981,840.69x = 1,472,917.91 × 342,328.48
  4. Step 4: Simplify right side
    981,840.69x = 504,221,743,901.14
  5. Step 5: Solve for x
    x = 504,221,743,901.14/981,840.69
  6. Step 6: Final answer
    x = 513,547.41

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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.