Home / 988,662.72-1,364,301.60-558,917.28

Finding the Fourth Proportional to 988,662.72, 1,364,301.60 and 558,917.28

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Solution

The fourth proportional to 988,662.72, 1,364,301.60 and 558,917.28 is: 771,275.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,662.72 : 1,364,301.60 = 558,917.28 : x
  2. Step 2: Convert to fraction form
    988,662.72/1,364,301.60 = 558,917.28/x
  3. Step 3: Cross multiply
    988,662.72x = 1,364,301.60 × 558,917.28
  4. Step 4: Simplify right side
    988,662.72x = 762,531,739,371.65
  5. Step 5: Solve for x
    x = 762,531,739,371.65/988,662.72
  6. Step 6: Final answer
    x = 771,275.91

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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.