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Finding the Fourth Proportional to 404,761.80, 606,624.30 and 310,801.80

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Solution

The fourth proportional to 404,761.80, 606,624.30 and 310,801.80 is: 465,804.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,761.80 : 606,624.30 = 310,801.80 : x
  2. Step 2: Convert to fraction form
    404,761.80/606,624.30 = 310,801.80/x
  3. Step 3: Cross multiply
    404,761.80x = 606,624.30 × 310,801.80
  4. Step 4: Simplify right side
    404,761.80x = 188,539,924,363.74
  5. Step 5: Solve for x
    x = 188,539,924,363.74/404,761.80
  6. Step 6: Final answer
    x = 465,804.64

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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.