Home / 628,335.12-867,076.74-341,855.49

Finding the Fourth Proportional to 628,335.12, 867,076.74 and 341,855.49

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Solution

The fourth proportional to 628,335.12, 867,076.74 and 341,855.49 is: 471,746.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,335.12 : 867,076.74 = 341,855.49 : x
  2. Step 2: Convert to fraction form
    628,335.12/867,076.74 = 341,855.49/x
  3. Step 3: Cross multiply
    628,335.12x = 867,076.74 × 341,855.49
  4. Step 4: Simplify right side
    628,335.12x = 296,414,943,820.30
  5. Step 5: Solve for x
    x = 296,414,943,820.30/628,335.12
  6. Step 6: Final answer
    x = 471,746.58

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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.