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Finding the Fourth Proportional to 519,398.88, 716,782.52 and 325,814.75

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Solution

The fourth proportional to 519,398.88, 716,782.52 and 325,814.75 is: 449,631.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,398.88 : 716,782.52 = 325,814.75 : x
  2. Step 2: Convert to fraction form
    519,398.88/716,782.52 = 325,814.75/x
  3. Step 3: Cross multiply
    519,398.88x = 716,782.52 × 325,814.75
  4. Step 4: Simplify right side
    519,398.88x = 233,538,317,558.17
  5. Step 5: Solve for x
    x = 233,538,317,558.17/519,398.88
  6. Step 6: Final answer
    x = 449,631.92

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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.