Home / 1,107,722.28-1,529,020.11-672,159.36

Finding the Fourth Proportional to 1,107,722.28, 1,529,020.11 and 672,159.36

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Solution

The fourth proportional to 1,107,722.28, 1,529,020.11 and 672,159.36 is: 927,800.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,722.28 : 1,529,020.11 = 672,159.36 : x
  2. Step 2: Convert to fraction form
    1,107,722.28/1,529,020.11 = 672,159.36/x
  3. Step 3: Cross multiply
    1,107,722.28x = 1,529,020.11 × 672,159.36
  4. Step 4: Simplify right side
    1,107,722.28x = 1,027,745,178,564.73
  5. Step 5: Solve for x
    x = 1,027,745,178,564.73/1,107,722.28
  6. Step 6: Final answer
    x = 927,800.40

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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.