Home / 1,259,307.90-1,888,961.85-417,859.65

Finding the Fourth Proportional to 1,259,307.90, 1,888,961.85 and 417,859.65

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Solution

The fourth proportional to 1,259,307.90, 1,888,961.85 and 417,859.65 is: 626,789.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,307.90 : 1,888,961.85 = 417,859.65 : x
  2. Step 2: Convert to fraction form
    1,259,307.90/1,888,961.85 = 417,859.65/x
  3. Step 3: Cross multiply
    1,259,307.90x = 1,888,961.85 × 417,859.65
  4. Step 4: Simplify right side
    1,259,307.90x = 789,320,937,504.35
  5. Step 5: Solve for x
    x = 789,320,937,504.35/1,259,307.90
  6. Step 6: Final answer
    x = 626,789.48

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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.