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Finding the Fourth Proportional to 507,201.28, 760,517.40 and 347,457.64

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Solution

The fourth proportional to 507,201.28, 760,517.40 and 347,457.64 is: 520,991.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,201.28 : 760,517.40 = 347,457.64 : x
  2. Step 2: Convert to fraction form
    507,201.28/760,517.40 = 347,457.64/x
  3. Step 3: Cross multiply
    507,201.28x = 760,517.40 × 347,457.64
  4. Step 4: Simplify right side
    507,201.28x = 264,247,580,982.94
  5. Step 5: Solve for x
    x = 264,247,580,982.94/507,201.28
  6. Step 6: Final answer
    x = 520,991.55

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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.