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Finding the Fourth Proportional to 528,334.72, 729,101.92 and 301,985.08

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Solution

The fourth proportional to 528,334.72, 729,101.92 and 301,985.08 is: 416,739.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,334.72 : 729,101.92 = 301,985.08 : x
  2. Step 2: Convert to fraction form
    528,334.72/729,101.92 = 301,985.08/x
  3. Step 3: Cross multiply
    528,334.72x = 729,101.92 × 301,985.08
  4. Step 4: Simplify right side
    528,334.72x = 220,177,901,639.35
  5. Step 5: Solve for x
    x = 220,177,901,639.35/528,334.72
  6. Step 6: Final answer
    x = 416,739.41

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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.