Home / 861,644.08-1,188,888.64-499,046.27

Finding the Fourth Proportional to 861,644.08, 1,188,888.64 and 499,046.27

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Solution

The fourth proportional to 861,644.08, 1,188,888.64 and 499,046.27 is: 688,579.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,644.08 : 1,188,888.64 = 499,046.27 : x
  2. Step 2: Convert to fraction form
    861,644.08/1,188,888.64 = 499,046.27/x
  3. Step 3: Cross multiply
    861,644.08x = 1,188,888.64 × 499,046.27
  4. Step 4: Simplify right side
    861,644.08x = 593,310,434,045.31
  5. Step 5: Solve for x
    x = 593,310,434,045.31/861,644.08
  6. Step 6: Final answer
    x = 688,579.48

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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.