Home / 931,078.17-1,396,589.54-257,199.87

Finding the Fourth Proportional to 931,078.17, 1,396,589.54 and 257,199.87

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Solution

The fourth proportional to 931,078.17, 1,396,589.54 and 257,199.87 is: 385,792.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,078.17 : 1,396,589.54 = 257,199.87 : x
  2. Step 2: Convert to fraction form
    931,078.17/1,396,589.54 = 257,199.87/x
  3. Step 3: Cross multiply
    931,078.17x = 1,396,589.54 × 257,199.87
  4. Step 4: Simplify right side
    931,078.17x = 359,202,646,845.36
  5. Step 5: Solve for x
    x = 359,202,646,845.36/931,078.17
  6. Step 6: Final answer
    x = 385,792.15

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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.