Home / 399,022.15-598,533.92-319,565.49

Finding the Fourth Proportional to 399,022.15, 598,533.92 and 319,565.49

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Solution

The fourth proportional to 399,022.15, 598,533.92 and 319,565.49 is: 479,348.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,022.15 : 598,533.92 = 319,565.49 : x
  2. Step 2: Convert to fraction form
    399,022.15/598,533.92 = 319,565.49/x
  3. Step 3: Cross multiply
    399,022.15x = 598,533.92 × 319,565.49
  4. Step 4: Simplify right side
    399,022.15x = 191,270,785,426.42
  5. Step 5: Solve for x
    x = 191,270,785,426.42/399,022.15
  6. Step 6: Final answer
    x = 479,348.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.