Home / 740,665.56-1,022,201.64-418,396.44

Finding the Fourth Proportional to 740,665.56, 1,022,201.64 and 418,396.44

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Solution

The fourth proportional to 740,665.56, 1,022,201.64 and 418,396.44 is: 577,434.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,665.56 : 1,022,201.64 = 418,396.44 : x
  2. Step 2: Convert to fraction form
    740,665.56/1,022,201.64 = 418,396.44/x
  3. Step 3: Cross multiply
    740,665.56x = 1,022,201.64 × 418,396.44
  4. Step 4: Simplify right side
    740,665.56x = 427,685,527,138.16
  5. Step 5: Solve for x
    x = 427,685,527,138.16/740,665.56
  6. Step 6: Final answer
    x = 577,434.07

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1.5x scale

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.