Home / 679,022.31-936,699.41-461,242.20

Finding the Fourth Proportional to 679,022.31, 936,699.41 and 461,242.20

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Solution

The fourth proportional to 679,022.31, 936,699.41 and 461,242.20 is: 636,275.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,022.31 : 936,699.41 = 461,242.20 : x
  2. Step 2: Convert to fraction form
    679,022.31/936,699.41 = 461,242.20/x
  3. Step 3: Cross multiply
    679,022.31x = 936,699.41 × 461,242.20
  4. Step 4: Simplify right side
    679,022.31x = 432,045,297,760.21
  5. Step 5: Solve for x
    x = 432,045,297,760.21/679,022.31
  6. Step 6: Final answer
    x = 636,275.56

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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.