Home / 931,871.19-1,397,954.71-300,637.38

Finding the Fourth Proportional to 931,871.19, 1,397,954.71 and 300,637.38

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Solution

The fourth proportional to 931,871.19, 1,397,954.71 and 300,637.38 is: 451,003.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,871.19 : 1,397,954.71 = 300,637.38 : x
  2. Step 2: Convert to fraction form
    931,871.19/1,397,954.71 = 300,637.38/x
  3. Step 3: Cross multiply
    931,871.19x = 1,397,954.71 × 300,637.38
  4. Step 4: Simplify right side
    931,871.19x = 420,277,432,880.10
  5. Step 5: Solve for x
    x = 420,277,432,880.10/931,871.19
  6. Step 6: Final answer
    x = 451,003.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.