Home / 1,077,721.50-1,616,856.84-319,590.66

Finding the Fourth Proportional to 1,077,721.50, 1,616,856.84 and 319,590.66

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Solution

The fourth proportional to 1,077,721.50, 1,616,856.84 and 319,590.66 is: 479,467.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,077,721.50 : 1,616,856.84 = 319,590.66 : x
  2. Step 2: Convert to fraction form
    1,077,721.50/1,616,856.84 = 319,590.66/x
  3. Step 3: Cross multiply
    1,077,721.50x = 1,616,856.84 × 319,590.66
  4. Step 4: Simplify right side
    1,077,721.50x = 516,732,344,621.11
  5. Step 5: Solve for x
    x = 516,732,344,621.11/1,077,721.50
  6. Step 6: Final answer
    x = 479,467.42

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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.