Home / 1,077,479.17-1,616,455.29-319,379.11

Finding the Fourth Proportional to 1,077,479.17, 1,616,455.29 and 319,379.11

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Solution

The fourth proportional to 1,077,479.17, 1,616,455.29 and 319,379.11 is: 479,138.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,077,479.17 : 1,616,455.29 = 319,379.11 : x
  2. Step 2: Convert to fraction form
    1,077,479.17/1,616,455.29 = 319,379.11/x
  3. Step 3: Cross multiply
    1,077,479.17x = 1,616,455.29 × 319,379.11
  4. Step 4: Simplify right side
    1,077,479.17x = 516,262,051,874.99
  5. Step 5: Solve for x
    x = 516,262,051,874.99/1,077,479.17
  6. Step 6: Final answer
    x = 479,138.78

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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.