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Finding the Fourth Proportional to 486,878.08, 729,714.24 and 275,876.32

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Solution

The fourth proportional to 486,878.08, 729,714.24 and 275,876.32 is: 413,472.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,878.08 : 729,714.24 = 275,876.32 : x
  2. Step 2: Convert to fraction form
    486,878.08/729,714.24 = 275,876.32/x
  3. Step 3: Cross multiply
    486,878.08x = 729,714.24 × 275,876.32
  4. Step 4: Simplify right side
    486,878.08x = 201,310,879,182.80
  5. Step 5: Solve for x
    x = 201,310,879,182.80/486,878.08
  6. Step 6: Final answer
    x = 413,472.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.