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Finding the Fourth Proportional to 1,755,075, 2,632,612.53 and 425,379

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Solution

The fourth proportional to 1,755,075, 2,632,612.53 and 425,379 is: 638,068.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,755,075 : 2,632,612.53 = 425,379 : x
  2. Step 2: Convert to fraction form
    1,755,075/2,632,612.53 = 425,379/x
  3. Step 3: Cross multiply
    1,755,075x = 2,632,612.53 × 425,379
  4. Step 4: Simplify right side
    1,755,075x = 1,119,858,085,398.87
  5. Step 5: Solve for x
    x = 1,119,858,085,398.87/1,755,075
  6. Step 6: Final answer
    x = 638,068.51

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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.