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Finding the Fourth Proportional to 374,772.60, 561,502.80 and 307,850.40

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Solution

The fourth proportional to 374,772.60, 561,502.80 and 307,850.40 is: 461,236.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,772.60 : 561,502.80 = 307,850.40 : x
  2. Step 2: Convert to fraction form
    374,772.60/561,502.80 = 307,850.40/x
  3. Step 3: Cross multiply
    374,772.60x = 561,502.80 × 307,850.40
  4. Step 4: Simplify right side
    374,772.60x = 172,858,861,581.12
  5. Step 5: Solve for x
    x = 172,858,861,581.12/374,772.60
  6. Step 6: Final answer
    x = 461,236.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.