Home / 1,939,640.51-2,909,702.32-660,149.66

Finding the Fourth Proportional to 1,939,640.51, 2,909,702.32 and 660,149.66

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Solution

The fourth proportional to 1,939,640.51, 2,909,702.32 and 660,149.66 is: 990,306.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939,640.51 : 2,909,702.32 = 660,149.66 : x
  2. Step 2: Convert to fraction form
    1,939,640.51/2,909,702.32 = 660,149.66/x
  3. Step 3: Cross multiply
    1,939,640.51x = 2,909,702.32 × 660,149.66
  4. Step 4: Simplify right side
    1,939,640.51x = 1,920,839,002,873.09
  5. Step 5: Solve for x
    x = 1,920,839,002,873.09/1,939,640.51
  6. Step 6: Final answer
    x = 990,306.70

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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.