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Finding the Fourth Proportional to 528,375.36, 729,157.88 and 302,025.72

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Solution

The fourth proportional to 528,375.36, 729,157.88 and 302,025.72 is: 416,795.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,375.36 : 729,157.88 = 302,025.72 : x
  2. Step 2: Convert to fraction form
    528,375.36/729,157.88 = 302,025.72/x
  3. Step 3: Cross multiply
    528,375.36x = 729,157.88 × 302,025.72
  4. Step 4: Simplify right side
    528,375.36x = 220,224,433,700.67
  5. Step 5: Solve for x
    x = 220,224,433,700.67/528,375.36
  6. Step 6: Final answer
    x = 416,795.43

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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.