Home / 520,747.03-781,105.42-165,782.35

Finding the Fourth Proportional to 520,747.03, 781,105.42 and 165,782.35

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Solution

The fourth proportional to 520,747.03, 781,105.42 and 165,782.35 is: 248,668.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,747.03 : 781,105.42 = 165,782.35 : x
  2. Step 2: Convert to fraction form
    520,747.03/781,105.42 = 165,782.35/x
  3. Step 3: Cross multiply
    520,747.03x = 781,105.42 × 165,782.35
  4. Step 4: Simplify right side
    520,747.03x = 129,493,492,125.34
  5. Step 5: Solve for x
    x = 129,493,492,125.34/520,747.03
  6. Step 6: Final answer
    x = 248,668.71

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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.