Home / 351,057.15-526,881.13-328,913.78

Finding the Fourth Proportional to 351,057.15, 526,881.13 and 328,913.78

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Solution

The fourth proportional to 351,057.15, 526,881.13 and 328,913.78 is: 493,647.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,057.15 : 526,881.13 = 328,913.78 : x
  2. Step 2: Convert to fraction form
    351,057.15/526,881.13 = 328,913.78/x
  3. Step 3: Cross multiply
    351,057.15x = 526,881.13 × 328,913.78
  4. Step 4: Simplify right side
    351,057.15x = 173,298,460,622.28
  5. Step 5: Solve for x
    x = 173,298,460,622.28/351,057.15
  6. Step 6: Final answer
    x = 493,647.43

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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.