Home / 1,426,628.62-2,138,603.32-479,336.86

Finding the Fourth Proportional to 1,426,628.62, 2,138,603.32 and 479,336.86

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Solution

The fourth proportional to 1,426,628.62, 2,138,603.32 and 479,336.86 is: 718,555.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426,628.62 : 2,138,603.32 = 479,336.86 : x
  2. Step 2: Convert to fraction form
    1,426,628.62/2,138,603.32 = 479,336.86/x
  3. Step 3: Cross multiply
    1,426,628.62x = 2,138,603.32 × 479,336.86
  4. Step 4: Simplify right side
    1,426,628.62x = 1,025,111,400,194.38
  5. Step 5: Solve for x
    x = 1,025,111,400,194.38/1,426,628.62
  6. Step 6: Final answer
    x = 718,555.19

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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.