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Finding the Fourth Proportional to 535,081.65, 738,384.42 and 305,593.53

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Solution

The fourth proportional to 535,081.65, 738,384.42 and 305,593.53 is: 421,702.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,081.65 : 738,384.42 = 305,593.53 : x
  2. Step 2: Convert to fraction form
    535,081.65/738,384.42 = 305,593.53/x
  3. Step 3: Cross multiply
    535,081.65x = 738,384.42 × 305,593.53
  4. Step 4: Simplify right side
    535,081.65x = 225,645,501,404.80
  5. Step 5: Solve for x
    x = 225,645,501,404.80/535,081.65
  6. Step 6: Final answer
    x = 421,702.93

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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.