Home / 1,242,658.48-1,713,217.08-812,198.56

Finding the Fourth Proportional to 1,242,658.48, 1,713,217.08 and 812,198.56

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Solution

The fourth proportional to 1,242,658.48, 1,713,217.08 and 812,198.56 is: 1,119,754.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,658.48 : 1,713,217.08 = 812,198.56 : x
  2. Step 2: Convert to fraction form
    1,242,658.48/1,713,217.08 = 812,198.56/x
  3. Step 3: Cross multiply
    1,242,658.48x = 1,713,217.08 × 812,198.56
  4. Step 4: Simplify right side
    1,242,658.48x = 1,391,472,445,343.41
  5. Step 5: Solve for x
    x = 1,391,472,445,343.41/1,242,658.48
  6. Step 6: Final answer
    x = 1,119,754.52

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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.