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Finding the Fourth Proportional to 528,670.90, 729,944.98 and 324,994.90

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Solution

The fourth proportional to 528,670.90, 729,944.98 and 324,994.90 is: 448,726.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,670.90 : 729,944.98 = 324,994.90 : x
  2. Step 2: Convert to fraction form
    528,670.90/729,944.98 = 324,994.90/x
  3. Step 3: Cross multiply
    528,670.90x = 729,944.98 × 324,994.90
  4. Step 4: Simplify right side
    528,670.90x = 237,228,395,780.60
  5. Step 5: Solve for x
    x = 237,228,395,780.60/528,670.90
  6. Step 6: Final answer
    x = 448,726.03

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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.