Home / 1,277,414.28-1,916,429.22-478,702.85

Finding the Fourth Proportional to 1,277,414.28, 1,916,429.22 and 478,702.85

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Solution

The fourth proportional to 1,277,414.28, 1,916,429.22 and 478,702.85 is: 718,169.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,414.28 : 1,916,429.22 = 478,702.85 : x
  2. Step 2: Convert to fraction form
    1,277,414.28/1,916,429.22 = 478,702.85/x
  3. Step 3: Cross multiply
    1,277,414.28x = 1,916,429.22 × 478,702.85
  4. Step 4: Simplify right side
    1,277,414.28x = 917,400,119,855.13
  5. Step 5: Solve for x
    x = 917,400,119,855.13/1,277,414.28
  6. Step 6: Final answer
    x = 718,169.61

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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.