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Finding the Fourth Proportional to 599,720.16, 899,727.88 and 422,573.12

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Solution

The fourth proportional to 599,720.16, 899,727.88 and 422,573.12 is: 633,963.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    599,720.16 : 899,727.88 = 422,573.12 : x
  2. Step 2: Convert to fraction form
    599,720.16/899,727.88 = 422,573.12/x
  3. Step 3: Cross multiply
    599,720.16x = 899,727.88 × 422,573.12
  4. Step 4: Simplify right side
    599,720.16x = 380,200,817,402.59
  5. Step 5: Solve for x
    x = 380,200,817,402.59/599,720.16
  6. Step 6: Final answer
    x = 633,963.71

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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.