Home / 808,738.16-1,212,468-403,722.50

Finding the Fourth Proportional to 808,738.16, 1,212,468 and 403,722.50

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Solution

The fourth proportional to 808,738.16, 1,212,468 and 403,722.50 is: 605,264.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,738.16 : 1,212,468 = 403,722.50 : x
  2. Step 2: Convert to fraction form
    808,738.16/1,212,468 = 403,722.50/x
  3. Step 3: Cross multiply
    808,738.16x = 1,212,468 × 403,722.50
  4. Step 4: Simplify right side
    808,738.16x = 489,500,606,067.66
  5. Step 5: Solve for x
    x = 489,500,606,067.66/808,738.16
  6. Step 6: Final answer
    x = 605,264.64

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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.