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Finding the Fourth Proportional to 496,602.52, 685,264.04 and 278,761.30

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Solution

The fourth proportional to 496,602.52, 685,264.04 and 278,761.30 is: 384,663.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,602.52 : 685,264.04 = 278,761.30 : x
  2. Step 2: Convert to fraction form
    496,602.52/685,264.04 = 278,761.30/x
  3. Step 3: Cross multiply
    496,602.52x = 685,264.04 × 278,761.30
  4. Step 4: Simplify right side
    496,602.52x = 191,025,094,633.65
  5. Step 5: Solve for x
    x = 191,025,094,633.65/496,602.52
  6. Step 6: Final answer
    x = 384,663.97

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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.