Home / 1,309,989.36-1,964,983.92-363,360.12

Finding the Fourth Proportional to 1,309,989.36, 1,964,983.92 and 363,360.12

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Solution

The fourth proportional to 1,309,989.36, 1,964,983.92 and 363,360.12 is: 545,040.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,989.36 : 1,964,983.92 = 363,360.12 : x
  2. Step 2: Convert to fraction form
    1,309,989.36/1,964,983.92 = 363,360.12/x
  3. Step 3: Cross multiply
    1,309,989.36x = 1,964,983.92 × 363,360.12
  4. Step 4: Simplify right side
    1,309,989.36x = 713,996,792,969.27
  5. Step 5: Solve for x
    x = 713,996,792,969.27/1,309,989.36
  6. Step 6: Final answer
    x = 545,040.15

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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.