Home / 564,824.91-779,430.30-319,771.56

Finding the Fourth Proportional to 564,824.91, 779,430.30 and 319,771.56

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Solution

The fourth proportional to 564,824.91, 779,430.30 and 319,771.56 is: 441,268.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,824.91 : 779,430.30 = 319,771.56 : x
  2. Step 2: Convert to fraction form
    564,824.91/779,430.30 = 319,771.56/x
  3. Step 3: Cross multiply
    564,824.91x = 779,430.30 × 319,771.56
  4. Step 4: Simplify right side
    564,824.91x = 249,239,642,942.27
  5. Step 5: Solve for x
    x = 249,239,642,942.27/564,824.91
  6. Step 6: Final answer
    x = 441,268.86

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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.