Home / 839,918.10-1,259,876.82-208,831.92

Finding the Fourth Proportional to 839,918.10, 1,259,876.82 and 208,831.92

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Solution

The fourth proportional to 839,918.10, 1,259,876.82 and 208,831.92 is: 313,247.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,918.10 : 1,259,876.82 = 208,831.92 : x
  2. Step 2: Convert to fraction form
    839,918.10/1,259,876.82 = 208,831.92/x
  3. Step 3: Cross multiply
    839,918.10x = 1,259,876.82 × 208,831.92
  4. Step 4: Simplify right side
    839,918.10x = 263,102,495,284.09
  5. Step 5: Solve for x
    x = 263,102,495,284.09/839,918.10
  6. Step 6: Final answer
    x = 313,247.80

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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.