Home / 1,167,904.80-1,749,092.40-720,007.20

Finding the Fourth Proportional to 1,167,904.80, 1,749,092.40 and 720,007.20

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Solution

The fourth proportional to 1,167,904.80, 1,749,092.40 and 720,007.20 is: 1,078,306.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,167,904.80 : 1,749,092.40 = 720,007.20 : x
  2. Step 2: Convert to fraction form
    1,167,904.80/1,749,092.40 = 720,007.20/x
  3. Step 3: Cross multiply
    1,167,904.80x = 1,749,092.40 × 720,007.20
  4. Step 4: Simplify right side
    1,167,904.80x = 1,259,359,121,465.28
  5. Step 5: Solve for x
    x = 1,259,359,121,465.28/1,167,904.80
  6. Step 6: Final answer
    x = 1,078,306.32

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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.