Home / 690,673.72-1,036,151.21-291,315.97

Finding the Fourth Proportional to 690,673.72, 1,036,151.21 and 291,315.97

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Solution

The fourth proportional to 690,673.72, 1,036,151.21 and 291,315.97 is: 437,033.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,673.72 : 1,036,151.21 = 291,315.97 : x
  2. Step 2: Convert to fraction form
    690,673.72/1,036,151.21 = 291,315.97/x
  3. Step 3: Cross multiply
    690,673.72x = 1,036,151.21 × 291,315.97
  4. Step 4: Simplify right side
    690,673.72x = 301,847,394,807.82
  5. Step 5: Solve for x
    x = 301,847,394,807.82/690,673.72
  6. Step 6: Final answer
    x = 437,033.27

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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.