Home / 1,837,145.95-2,755,781.09-639,078.61

Finding the Fourth Proportional to 1,837,145.95, 2,755,781.09 and 639,078.61

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Solution

The fourth proportional to 1,837,145.95, 2,755,781.09 and 639,078.61 is: 958,639.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,837,145.95 : 2,755,781.09 = 639,078.61 : x
  2. Step 2: Convert to fraction form
    1,837,145.95/2,755,781.09 = 639,078.61/x
  3. Step 3: Cross multiply
    1,837,145.95x = 2,755,781.09 × 639,078.61
  4. Step 4: Simplify right side
    1,837,145.95x = 1,761,160,748,461.49
  5. Step 5: Solve for x
    x = 1,761,160,748,461.49/1,837,145.95
  6. Step 6: Final answer
    x = 958,639.54

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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.