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Finding the Fourth Proportional to 535,065.93, 738,396.99 and 305,653.59

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Solution

The fourth proportional to 535,065.93, 738,396.99 and 305,653.59 is: 421,805.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,065.93 : 738,396.99 = 305,653.59 : x
  2. Step 2: Convert to fraction form
    535,065.93/738,396.99 = 305,653.59/x
  3. Step 3: Cross multiply
    535,065.93x = 738,396.99 × 305,653.59
  4. Step 4: Simplify right side
    535,065.93x = 225,693,690,838.69
  5. Step 5: Solve for x
    x = 225,693,690,838.69/535,065.93
  6. Step 6: Final answer
    x = 421,805.39

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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.