Home / 993,722.91-1,490,375.39-319,864.47

Finding the Fourth Proportional to 993,722.91, 1,490,375.39 and 319,864.47

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Solution

The fourth proportional to 993,722.91, 1,490,375.39 and 319,864.47 is: 479,729.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,722.91 : 1,490,375.39 = 319,864.47 : x
  2. Step 2: Convert to fraction form
    993,722.91/1,490,375.39 = 319,864.47/x
  3. Step 3: Cross multiply
    993,722.91x = 1,490,375.39 × 319,864.47
  4. Step 4: Simplify right side
    993,722.91x = 476,718,132,624.07
  5. Step 5: Solve for x
    x = 476,718,132,624.07/993,722.91
  6. Step 6: Final answer
    x = 479,729.44

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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.