Home / 766,341.27-1,148,329.31-485,268.03

Finding the Fourth Proportional to 766,341.27, 1,148,329.31 and 485,268.03

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Solution

The fourth proportional to 766,341.27, 1,148,329.31 and 485,268.03 is: 727,153.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,341.27 : 1,148,329.31 = 485,268.03 : x
  2. Step 2: Convert to fraction form
    766,341.27/1,148,329.31 = 485,268.03/x
  3. Step 3: Cross multiply
    766,341.27x = 1,148,329.31 × 485,268.03
  4. Step 4: Simplify right side
    766,341.27x = 557,247,499,628.62
  5. Step 5: Solve for x
    x = 557,247,499,628.62/766,341.27
  6. Step 6: Final answer
    x = 727,153.19

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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.