Home / 679,023.31-936,700.79-461,243.20

Finding the Fourth Proportional to 679,023.31, 936,700.79 and 461,243.20

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Solution

The fourth proportional to 679,023.31, 936,700.79 and 461,243.20 is: 636,276.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,023.31 : 936,700.79 = 461,243.20 : x
  2. Step 2: Convert to fraction form
    679,023.31/936,700.79 = 461,243.20/x
  3. Step 3: Cross multiply
    679,023.31x = 936,700.79 × 461,243.20
  4. Step 4: Simplify right side
    679,023.31x = 432,046,869,822.13
  5. Step 5: Solve for x
    x = 432,046,869,822.13/679,023.31
  6. Step 6: Final answer
    x = 636,276.93

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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.