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Finding the Fourth Proportional to 528,337.48, 729,028.38 and 301,939.24

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Solution

The fourth proportional to 528,337.48, 729,028.38 and 301,939.24 is: 416,631.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,337.48 : 729,028.38 = 301,939.24 : x
  2. Step 2: Convert to fraction form
    528,337.48/729,028.38 = 301,939.24/x
  3. Step 3: Cross multiply
    528,337.48x = 729,028.38 × 301,939.24
  4. Step 4: Simplify right side
    528,337.48x = 220,122,274,995.63
  5. Step 5: Solve for x
    x = 220,122,274,995.63/528,337.48
  6. Step 6: Final answer
    x = 416,631.95

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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.