Home / 931,289.16-1,284,161.94-628,958.28

Finding the Fourth Proportional to 931,289.16, 1,284,161.94 and 628,958.28

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Solution

The fourth proportional to 931,289.16, 1,284,161.94 and 628,958.28 is: 867,275.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,289.16 : 1,284,161.94 = 628,958.28 : x
  2. Step 2: Convert to fraction form
    931,289.16/1,284,161.94 = 628,958.28/x
  3. Step 3: Cross multiply
    931,289.16x = 1,284,161.94 × 628,958.28
  4. Step 4: Simplify right side
    931,289.16x = 807,684,285,023.86
  5. Step 5: Solve for x
    x = 807,684,285,023.86/931,289.16
  6. Step 6: Final answer
    x = 867,275.51

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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.