Home / 1,121,904.10-1,558,679.78-1,108,452.00

Finding the Fourth Proportional to 1,121,904.10, 1,558,679.78 and 1,108,452.00

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Solution

The fourth proportional to 1,121,904.10, 1,558,679.78 and 1,108,452.00 is: 1,539,990.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,904.10 : 1,558,679.78 = 1,108,452.00 : x
  2. Step 2: Convert to fraction form
    1,121,904.10/1,558,679.78 = 1,108,452.00/x
  3. Step 3: Cross multiply
    1,121,904.10x = 1,558,679.78 × 1,108,452.00
  4. Step 4: Simplify right side
    1,121,904.10x = 1,727,721,717,682.21
  5. Step 5: Solve for x
    x = 1,727,721,717,682.21/1,121,904.10
  6. Step 6: Final answer
    x = 1,539,990.56

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.