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Finding the Fourth Proportional to 613,137.40, 846,157.26 and 344,865.40

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Solution

The fourth proportional to 613,137.40, 846,157.26 and 344,865.40 is: 475,929.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,137.40 : 846,157.26 = 344,865.40 : x
  2. Step 2: Convert to fraction form
    613,137.40/846,157.26 = 344,865.40/x
  3. Step 3: Cross multiply
    613,137.40x = 846,157.26 × 344,865.40
  4. Step 4: Simplify right side
    613,137.40x = 291,810,361,932.80
  5. Step 5: Solve for x
    x = 291,810,361,932.80/613,137.40
  6. Step 6: Final answer
    x = 475,929.80

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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.