Home / 399,023.06-598,535.27-319,566.39

Finding the Fourth Proportional to 399,023.06, 598,535.27 and 319,566.39

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Solution

The fourth proportional to 399,023.06, 598,535.27 and 319,566.39 is: 479,350.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,023.06 : 598,535.27 = 319,566.39 : x
  2. Step 2: Convert to fraction form
    399,023.06/598,535.27 = 319,566.39/x
  3. Step 3: Cross multiply
    399,023.06x = 598,535.27 × 319,566.39
  4. Step 4: Simplify right side
    399,023.06x = 191,271,753,923.74
  5. Step 5: Solve for x
    x = 191,271,753,923.74/399,023.06
  6. Step 6: Final answer
    x = 479,350.13

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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.