Home / 726,755.54-1,090,133.64-326,929.28

Finding the Fourth Proportional to 726,755.54, 1,090,133.64 and 326,929.28

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Solution

The fourth proportional to 726,755.54, 1,090,133.64 and 326,929.28 is: 490,394.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,755.54 : 1,090,133.64 = 326,929.28 : x
  2. Step 2: Convert to fraction form
    726,755.54/1,090,133.64 = 326,929.28/x
  3. Step 3: Cross multiply
    726,755.54x = 1,090,133.64 × 326,929.28
  4. Step 4: Simplify right side
    726,755.54x = 356,396,600,578.31
  5. Step 5: Solve for x
    x = 356,396,600,578.31/726,755.54
  6. Step 6: Final answer
    x = 490,394.06

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1.5x scale

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.