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Finding the Fourth Proportional to 530,003.50, 731,404.83 and 303,780.22

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Solution

The fourth proportional to 530,003.50, 731,404.83 and 303,780.22 is: 419,216.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,003.50 : 731,404.83 = 303,780.22 : x
  2. Step 2: Convert to fraction form
    530,003.50/731,404.83 = 303,780.22/x
  3. Step 3: Cross multiply
    530,003.50x = 731,404.83 × 303,780.22
  4. Step 4: Simplify right side
    530,003.50x = 222,186,320,166.46
  5. Step 5: Solve for x
    x = 222,186,320,166.46/530,003.50
  6. Step 6: Final answer
    x = 419,216.70

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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.