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Finding the Fourth Proportional to 511,544.76, 705,707.82 and 487,827.96

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Solution

The fourth proportional to 511,544.76, 705,707.82 and 487,827.96 is: 672,989.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,544.76 : 705,707.82 = 487,827.96 : x
  2. Step 2: Convert to fraction form
    511,544.76/705,707.82 = 487,827.96/x
  3. Step 3: Cross multiply
    511,544.76x = 705,707.82 × 487,827.96
  4. Step 4: Simplify right side
    511,544.76x = 344,264,006,186.65
  5. Step 5: Solve for x
    x = 344,264,006,186.65/511,544.76
  6. Step 6: Final answer
    x = 672,989.02

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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.