Home / 1,111,705-1,669,789.05-663,300.88

Finding the Fourth Proportional to 1,111,705, 1,669,789.05 and 663,300.88

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Solution

The fourth proportional to 1,111,705, 1,669,789.05 and 663,300.88 is: 996,282.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111,705 : 1,669,789.05 = 663,300.88 : x
  2. Step 2: Convert to fraction form
    1,111,705/1,669,789.05 = 663,300.88/x
  3. Step 3: Cross multiply
    1,111,705x = 1,669,789.05 × 663,300.88
  4. Step 4: Simplify right side
    1,111,705x = 1,107,572,546,279.36
  5. Step 5: Solve for x
    x = 1,107,572,546,279.36/1,111,705
  6. Step 6: Final answer
    x = 996,282.78

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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.