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Finding the Fourth Proportional to 613,402.60, 846,493.86 and 345,130.60

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Solution

The fourth proportional to 613,402.60, 846,493.86 and 345,130.60 is: 476,279.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,402.60 : 846,493.86 = 345,130.60 : x
  2. Step 2: Convert to fraction form
    613,402.60/846,493.86 = 345,130.60/x
  3. Step 3: Cross multiply
    613,402.60x = 846,493.86 × 345,130.60
  4. Step 4: Simplify right side
    613,402.60x = 292,150,933,798.12
  5. Step 5: Solve for x
    x = 292,150,933,798.12/613,402.60
  6. Step 6: Final answer
    x = 476,279.26

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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.