Home / 715,735.04-987,572.40-409,908.56

Finding the Fourth Proportional to 715,735.04, 987,572.40 and 409,908.56

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Solution

The fourth proportional to 715,735.04, 987,572.40 and 409,908.56 is: 565,592.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,735.04 : 987,572.40 = 409,908.56 : x
  2. Step 2: Convert to fraction form
    715,735.04/987,572.40 = 409,908.56/x
  3. Step 3: Cross multiply
    715,735.04x = 987,572.40 × 409,908.56
  4. Step 4: Simplify right side
    715,735.04x = 404,814,380,379.74
  5. Step 5: Solve for x
    x = 404,814,380,379.74/715,735.04
  6. Step 6: Final answer
    x = 565,592.51

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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.