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Finding the Fourth Proportional to 662,987.31, 994,775.99 and 347,370.39

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Solution

The fourth proportional to 662,987.31, 994,775.99 and 347,370.39 is: 521,210.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,987.31 : 994,775.99 = 347,370.39 : x
  2. Step 2: Convert to fraction form
    662,987.31/994,775.99 = 347,370.39/x
  3. Step 3: Cross multiply
    662,987.31x = 994,775.99 × 347,370.39
  4. Step 4: Simplify right side
    662,987.31x = 345,555,721,872.08
  5. Step 5: Solve for x
    x = 345,555,721,872.08/662,987.31
  6. Step 6: Final answer
    x = 521,210.16

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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.