Home / 528,190.24-791,891.34-317,778.88

Finding the Fourth Proportional to 528,190.24, 791,891.34 and 317,778.88

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Solution

The fourth proportional to 528,190.24, 791,891.34 and 317,778.88 is: 476,431.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,190.24 : 791,891.34 = 317,778.88 : x
  2. Step 2: Convert to fraction form
    528,190.24/791,891.34 = 317,778.88/x
  3. Step 3: Cross multiply
    528,190.24x = 791,891.34 × 317,778.88
  4. Step 4: Simplify right side
    528,190.24x = 251,646,343,106.90
  5. Step 5: Solve for x
    x = 251,646,343,106.90/528,190.24
  6. Step 6: Final answer
    x = 476,431.26

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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.