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Finding the Fourth Proportional to 535,625.81, 739,109.79 and 320,760.35

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Solution

The fourth proportional to 535,625.81, 739,109.79 and 320,760.35 is: 442,617.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,625.81 : 739,109.79 = 320,760.35 : x
  2. Step 2: Convert to fraction form
    535,625.81/739,109.79 = 320,760.35/x
  3. Step 3: Cross multiply
    535,625.81x = 739,109.79 × 320,760.35
  4. Step 4: Simplify right side
    535,625.81x = 237,077,117,260.29
  5. Step 5: Solve for x
    x = 237,077,117,260.29/535,625.81
  6. Step 6: Final answer
    x = 442,617.05

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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.