Home / 3,129,977.69-4,695,640.11-970,959.77

Finding the Fourth Proportional to 3,129,977.69, 4,695,640.11 and 970,959.77

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Solution

The fourth proportional to 3,129,977.69, 4,695,640.11 and 970,959.77 is: 1,456,648.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129,977.69 : 4,695,640.11 = 970,959.77 : x
  2. Step 2: Convert to fraction form
    3,129,977.69/4,695,640.11 = 970,959.77/x
  3. Step 3: Cross multiply
    3,129,977.69x = 4,695,640.11 × 970,959.77
  4. Step 4: Simplify right side
    3,129,977.69x = 4,559,277,641,208.38
  5. Step 5: Solve for x
    x = 4,559,277,641,208.38/3,129,977.69
  6. Step 6: Final answer
    x = 1,456,648.61

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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.