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Finding the Fourth Proportional to 535,072.42, 738,399.72 and 293,349.79

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Solution

The fourth proportional to 535,072.42, 738,399.72 and 293,349.79 is: 404,822.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,072.42 : 738,399.72 = 293,349.79 : x
  2. Step 2: Convert to fraction form
    535,072.42/738,399.72 = 293,349.79/x
  3. Step 3: Cross multiply
    535,072.42x = 738,399.72 × 293,349.79
  4. Step 4: Simplify right side
    535,072.42x = 216,609,402,798.06
  5. Step 5: Solve for x
    x = 216,609,402,798.06/535,072.42
  6. Step 6: Final answer
    x = 404,822.59

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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.