Home / 766,623.70-1,057,926.43-422,491.51

Finding the Fourth Proportional to 766,623.70, 1,057,926.43 and 422,491.51

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Solution

The fourth proportional to 766,623.70, 1,057,926.43 and 422,491.51 is: 583,030.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,623.70 : 1,057,926.43 = 422,491.51 : x
  2. Step 2: Convert to fraction form
    766,623.70/1,057,926.43 = 422,491.51/x
  3. Step 3: Cross multiply
    766,623.70x = 1,057,926.43 × 422,491.51
  4. Step 4: Simplify right side
    766,623.70x = 446,964,934,879.61
  5. Step 5: Solve for x
    x = 446,964,934,879.61/766,623.70
  6. Step 6: Final answer
    x = 583,030.42

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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.