Home / 1,422,991.33-1,963,774.58-811,132.98

Finding the Fourth Proportional to 1,422,991.33, 1,963,774.58 and 811,132.98

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Solution

The fourth proportional to 1,422,991.33, 1,963,774.58 and 811,132.98 is: 1,119,390.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,991.33 : 1,963,774.58 = 811,132.98 : x
  2. Step 2: Convert to fraction form
    1,422,991.33/1,963,774.58 = 811,132.98/x
  3. Step 3: Cross multiply
    1,422,991.33x = 1,963,774.58 × 811,132.98
  4. Step 4: Simplify right side
    1,422,991.33x = 1,592,882,327,123.65
  5. Step 5: Solve for x
    x = 1,592,882,327,123.65/1,422,991.33
  6. Step 6: Final answer
    x = 1,119,390.04

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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.