Home / 949,998.78-1,310,998.77-520,305.93

Finding the Fourth Proportional to 949,998.78, 1,310,998.77 and 520,305.93

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Solution

The fourth proportional to 949,998.78, 1,310,998.77 and 520,305.93 is: 718,022.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    949,998.78 : 1,310,998.77 = 520,305.93 : x
  2. Step 2: Convert to fraction form
    949,998.78/1,310,998.77 = 520,305.93/x
  3. Step 3: Cross multiply
    949,998.78x = 1,310,998.77 × 520,305.93
  4. Step 4: Simplify right side
    949,998.78x = 682,120,434,253.71
  5. Step 5: Solve for x
    x = 682,120,434,253.71/949,998.78
  6. Step 6: Final answer
    x = 718,022.43

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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.