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Finding the Fourth Proportional to 658,888.26, 908,914.71 and 400,843.86

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Solution

The fourth proportional to 658,888.26, 908,914.71 and 400,843.86 is: 552,950.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,888.26 : 908,914.71 = 400,843.86 : x
  2. Step 2: Convert to fraction form
    658,888.26/908,914.71 = 400,843.86/x
  3. Step 3: Cross multiply
    658,888.26x = 908,914.71 × 400,843.86
  4. Step 4: Simplify right side
    658,888.26x = 364,332,880,767.18
  5. Step 5: Solve for x
    x = 364,332,880,767.18/658,888.26
  6. Step 6: Final answer
    x = 552,950.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.