Home / 461,089.10-636,206.72-279,896.42

Finding the Fourth Proportional to 461,089.10, 636,206.72 and 279,896.42

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Solution

The fourth proportional to 461,089.10, 636,206.72 and 279,896.42 is: 386,198.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,089.10 : 636,206.72 = 279,896.42 : x
  2. Step 2: Convert to fraction form
    461,089.10/636,206.72 = 279,896.42/x
  3. Step 3: Cross multiply
    461,089.10x = 636,206.72 × 279,896.42
  4. Step 4: Simplify right side
    461,089.10x = 178,071,983,307.94
  5. Step 5: Solve for x
    x = 178,071,983,307.94/461,089.10
  6. Step 6: Final answer
    x = 386,198.64

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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.