Home / 903,274.31-1,246,428.73-521,424.11

Finding the Fourth Proportional to 903,274.31, 1,246,428.73 and 521,424.11

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Solution

The fourth proportional to 903,274.31, 1,246,428.73 and 521,424.11 is: 719,513.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,274.31 : 1,246,428.73 = 521,424.11 : x
  2. Step 2: Convert to fraction form
    903,274.31/1,246,428.73 = 521,424.11/x
  3. Step 3: Cross multiply
    903,274.31x = 1,246,428.73 × 521,424.11
  4. Step 4: Simplify right side
    903,274.31x = 649,917,991,218.68
  5. Step 5: Solve for x
    x = 649,917,991,218.68/903,274.31
  6. Step 6: Final answer
    x = 719,513.42

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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.