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Finding the Fourth Proportional to 613,401.60, 846,492.48 and 345,129.60

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Solution

The fourth proportional to 613,401.60, 846,492.48 and 345,129.60 is: 476,277.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,401.60 : 846,492.48 = 345,129.60 : x
  2. Step 2: Convert to fraction form
    613,401.60/846,492.48 = 345,129.60/x
  3. Step 3: Cross multiply
    613,401.60x = 846,492.48 × 345,129.60
  4. Step 4: Simplify right side
    613,401.60x = 292,149,611,025.41
  5. Step 5: Solve for x
    x = 292,149,611,025.41/613,401.60
  6. Step 6: Final answer
    x = 476,277.88

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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.