Home / 805,164.10-1,111,128.75-461,005.30

Finding the Fourth Proportional to 805,164.10, 1,111,128.75 and 461,005.30

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Solution

The fourth proportional to 805,164.10, 1,111,128.75 and 461,005.30 is: 636,188.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,164.10 : 1,111,128.75 = 461,005.30 : x
  2. Step 2: Convert to fraction form
    805,164.10/1,111,128.75 = 461,005.30/x
  3. Step 3: Cross multiply
    805,164.10x = 1,111,128.75 × 461,005.30
  4. Step 4: Simplify right side
    805,164.10x = 512,236,244,121.29
  5. Step 5: Solve for x
    x = 512,236,244,121.29/805,164.10
  6. Step 6: Final answer
    x = 636,188.63

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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.