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Finding the Fourth Proportional to 623,969.40, 861,077.84 and 337,489.50

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Solution

The fourth proportional to 623,969.40, 861,077.84 and 337,489.50 is: 465,735.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,969.40 : 861,077.84 = 337,489.50 : x
  2. Step 2: Convert to fraction form
    623,969.40/861,077.84 = 337,489.50/x
  3. Step 3: Cross multiply
    623,969.40x = 861,077.84 × 337,489.50
  4. Step 4: Simplify right side
    623,969.40x = 290,604,727,995.23
  5. Step 5: Solve for x
    x = 290,604,727,995.23/623,969.40
  6. Step 6: Final answer
    x = 465,735.54

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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.