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Finding the Fourth Proportional to 624,120.32, 861,284.14 and 337,640.34

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Solution

The fourth proportional to 624,120.32, 861,284.14 and 337,640.34 is: 465,942.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,120.32 : 861,284.14 = 337,640.34 : x
  2. Step 2: Convert to fraction form
    624,120.32/861,284.14 = 337,640.34/x
  3. Step 3: Cross multiply
    624,120.32x = 861,284.14 × 337,640.34
  4. Step 4: Simplify right side
    624,120.32x = 290,804,269,866.21
  5. Step 5: Solve for x
    x = 290,804,269,866.21/624,120.32
  6. Step 6: Final answer
    x = 465,942.64

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1.5x scale

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.