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Finding the Fourth Proportional to 519,899.20, 717,794.40 and 424,634.56

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Solution

The fourth proportional to 519,899.20, 717,794.40 and 424,634.56 is: 586,268.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,899.20 : 717,794.40 = 424,634.56 : x
  2. Step 2: Convert to fraction form
    519,899.20/717,794.40 = 424,634.56/x
  3. Step 3: Cross multiply
    519,899.20x = 717,794.40 × 424,634.56
  4. Step 4: Simplify right side
    519,899.20x = 304,800,309,214.46
  5. Step 5: Solve for x
    x = 304,800,309,214.46/519,899.20
  6. Step 6: Final answer
    x = 586,268.09

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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.