Home / 1,077,720.75-1,616,855.72-319,589.91

Finding the Fourth Proportional to 1,077,720.75, 1,616,855.72 and 319,589.91

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Solution

The fourth proportional to 1,077,720.75, 1,616,855.72 and 319,589.91 is: 479,466.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,077,720.75 : 1,616,855.72 = 319,589.91 : x
  2. Step 2: Convert to fraction form
    1,077,720.75/1,616,855.72 = 319,589.91/x
  3. Step 3: Cross multiply
    1,077,720.75x = 1,616,855.72 × 319,589.91
  4. Step 4: Simplify right side
    1,077,720.75x = 516,730,772,439.84
  5. Step 5: Solve for x
    x = 516,730,772,439.84/1,077,720.75
  6. Step 6: Final answer
    x = 479,466.29

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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.