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Finding the Fourth Proportional to 528,342.48, 729,035.28 and 301,944.24

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Solution

The fourth proportional to 528,342.48, 729,035.28 and 301,944.24 is: 416,638.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,342.48 : 729,035.28 = 301,944.24 : x
  2. Step 2: Convert to fraction form
    528,342.48/729,035.28 = 301,944.24/x
  3. Step 3: Cross multiply
    528,342.48x = 729,035.28 × 301,944.24
  4. Step 4: Simplify right side
    528,342.48x = 220,128,003,552.79
  5. Step 5: Solve for x
    x = 220,128,003,552.79/528,342.48
  6. Step 6: Final answer
    x = 416,638.85

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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.