Home / 745,003.62-1,027,990.67-418,333.55

Finding the Fourth Proportional to 745,003.62, 1,027,990.67 and 418,333.55

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Solution

The fourth proportional to 745,003.62, 1,027,990.67 and 418,333.55 is: 577,236.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,003.62 : 1,027,990.67 = 418,333.55 : x
  2. Step 2: Convert to fraction form
    745,003.62/1,027,990.67 = 418,333.55/x
  3. Step 3: Cross multiply
    745,003.62x = 1,027,990.67 × 418,333.55
  4. Step 4: Simplify right side
    745,003.62x = 430,042,979,116.36
  5. Step 5: Solve for x
    x = 430,042,979,116.36/745,003.62
  6. Step 6: Final answer
    x = 577,236.09

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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.