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Finding the Fourth Proportional to 535,673.39, 739,238.48 and 293,978.45

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Solution

The fourth proportional to 535,673.39, 739,238.48 and 293,978.45 is: 405,695.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,673.39 : 739,238.48 = 293,978.45 : x
  2. Step 2: Convert to fraction form
    535,673.39/739,238.48 = 293,978.45/x
  3. Step 3: Cross multiply
    535,673.39x = 739,238.48 × 293,978.45
  4. Step 4: Simplify right side
    535,673.39x = 217,320,177,364.67
  5. Step 5: Solve for x
    x = 217,320,177,364.67/535,673.39
  6. Step 6: Final answer
    x = 405,695.31

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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.