Home / 479,057.41-718,589.76-212,746.42

Finding the Fourth Proportional to 479,057.41, 718,589.76 and 212,746.42

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Solution

The fourth proportional to 479,057.41, 718,589.76 and 212,746.42 is: 319,121.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,057.41 : 718,589.76 = 212,746.42 : x
  2. Step 2: Convert to fraction form
    479,057.41/718,589.76 = 212,746.42/x
  3. Step 3: Cross multiply
    479,057.41x = 718,589.76 × 212,746.42
  4. Step 4: Simplify right side
    479,057.41x = 152,877,398,888.66
  5. Step 5: Solve for x
    x = 152,877,398,888.66/479,057.41
  6. Step 6: Final answer
    x = 319,121.25

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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.