Home / 1,217,079.72-1,681,287.99-1,108,001.88

Finding the Fourth Proportional to 1,217,079.72, 1,681,287.99 and 1,108,001.88

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Solution

The fourth proportional to 1,217,079.72, 1,681,287.99 and 1,108,001.88 is: 1,530,606.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,079.72 : 1,681,287.99 = 1,108,001.88 : x
  2. Step 2: Convert to fraction form
    1,217,079.72/1,681,287.99 = 1,108,001.88/x
  3. Step 3: Cross multiply
    1,217,079.72x = 1,681,287.99 × 1,108,001.88
  4. Step 4: Simplify right side
    1,217,079.72x = 1,862,870,253,741.42
  5. Step 5: Solve for x
    x = 1,862,870,253,741.42/1,217,079.72
  6. Step 6: Final answer
    x = 1,530,606.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.