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Finding the Fourth Proportional to 1,755,669, 2,633,504.76 and 425,973

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Solution

The fourth proportional to 1,755,669, 2,633,504.76 and 425,973 is: 638,959.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,755,669 : 2,633,504.76 = 425,973 : x
  2. Step 2: Convert to fraction form
    1,755,669/2,633,504.76 = 425,973/x
  3. Step 3: Cross multiply
    1,755,669x = 2,633,504.76 × 425,973
  4. Step 4: Simplify right side
    1,755,669x = 1,121,801,923,131.48
  5. Step 5: Solve for x
    x = 1,121,801,923,131.48/1,755,669
  6. Step 6: Final answer
    x = 638,959.81

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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.