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Finding the Fourth Proportional to 530,055.36, 731,495.48 and 303,744.60

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Solution

The fourth proportional to 530,055.36, 731,495.48 and 303,744.60 is: 419,178.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,055.36 : 731,495.48 = 303,744.60 : x
  2. Step 2: Convert to fraction form
    530,055.36/731,495.48 = 303,744.60/x
  3. Step 3: Cross multiply
    530,055.36x = 731,495.48 × 303,744.60
  4. Step 4: Simplify right side
    530,055.36x = 222,187,800,455.69
  5. Step 5: Solve for x
    x = 222,187,800,455.69/530,055.36
  6. Step 6: Final answer
    x = 419,178.48

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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.