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Finding the Fourth Proportional to 519,672.32, 779,457.40 and 352,268

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Solution

The fourth proportional to 519,672.32, 779,457.40 and 352,268 is: 528,367.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,672.32 : 779,457.40 = 352,268 : x
  2. Step 2: Convert to fraction form
    519,672.32/779,457.40 = 352,268/x
  3. Step 3: Cross multiply
    519,672.32x = 779,457.40 × 352,268
  4. Step 4: Simplify right side
    519,672.32x = 274,577,899,383.20
  5. Step 5: Solve for x
    x = 274,577,899,383.20/519,672.32
  6. Step 6: Final answer
    x = 528,367.37

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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.