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Finding the Fourth Proportional to 404,336.40, 606,115.80 and 314,329.20

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Solution

The fourth proportional to 404,336.40, 606,115.80 and 314,329.20 is: 471,191.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,336.40 : 606,115.80 = 314,329.20 : x
  2. Step 2: Convert to fraction form
    404,336.40/606,115.80 = 314,329.20/x
  3. Step 3: Cross multiply
    404,336.40x = 606,115.80 × 314,329.20
  4. Step 4: Simplify right side
    404,336.40x = 190,519,894,521.36
  5. Step 5: Solve for x
    x = 190,519,894,521.36/404,336.40
  6. Step 6: Final answer
    x = 471,191.55

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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.