Home / 740,916-1,022,507.82-418,617.81

Finding the Fourth Proportional to 740,916, 1,022,507.82 and 418,617.81

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Solution

The fourth proportional to 740,916, 1,022,507.82 and 418,617.81 is: 577,717.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,916 : 1,022,507.82 = 418,617.81 : x
  2. Step 2: Convert to fraction form
    740,916/1,022,507.82 = 418,617.81/x
  3. Step 3: Cross multiply
    740,916x = 1,022,507.82 × 418,617.81
  4. Step 4: Simplify right side
    740,916x = 428,039,984,316.27
  5. Step 5: Solve for x
    x = 428,039,984,316.27/740,916
  6. Step 6: Final answer
    x = 577,717.29

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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.