Home / 1,206,399.30-1,809,080.55-607,128.90

Finding the Fourth Proportional to 1,206,399.30, 1,809,080.55 and 607,128.90

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Solution

The fourth proportional to 1,206,399.30, 1,809,080.55 and 607,128.90 is: 910,432.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,399.30 : 1,809,080.55 = 607,128.90 : x
  2. Step 2: Convert to fraction form
    1,206,399.30/1,809,080.55 = 607,128.90/x
  3. Step 3: Cross multiply
    1,206,399.30x = 1,809,080.55 × 607,128.90
  4. Step 4: Simplify right side
    1,206,399.30x = 1,098,345,084,332.90
  5. Step 5: Solve for x
    x = 1,098,345,084,332.90/1,206,399.30
  6. Step 6: Final answer
    x = 910,432.46

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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.