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Finding the Fourth Proportional to 491,270.40, 736,905.60 and 341,971.20

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Solution

The fourth proportional to 491,270.40, 736,905.60 and 341,971.20 is: 512,956.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,270.40 : 736,905.60 = 341,971.20 : x
  2. Step 2: Convert to fraction form
    491,270.40/736,905.60 = 341,971.20/x
  3. Step 3: Cross multiply
    491,270.40x = 736,905.60 × 341,971.20
  4. Step 4: Simplify right side
    491,270.40x = 252,000,492,318.72
  5. Step 5: Solve for x
    x = 252,000,492,318.72/491,270.40
  6. Step 6: Final answer
    x = 512,956.80

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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.