Home / 612,847.84-845,669.28-383,360.80

Finding the Fourth Proportional to 612,847.84, 845,669.28 and 383,360.80

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Solution

The fourth proportional to 612,847.84, 845,669.28 and 383,360.80 is: 528,999.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,847.84 : 845,669.28 = 383,360.80 : x
  2. Step 2: Convert to fraction form
    612,847.84/845,669.28 = 383,360.80/x
  3. Step 3: Cross multiply
    612,847.84x = 845,669.28 × 383,360.80
  4. Step 4: Simplify right side
    612,847.84x = 324,196,451,716.22
  5. Step 5: Solve for x
    x = 324,196,451,716.22/612,847.84
  6. Step 6: Final answer
    x = 528,999.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.