Home / 771,415.68-1,156,414.59-265,856.58

Finding the Fourth Proportional to 771,415.68, 1,156,414.59 and 265,856.58

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Solution

The fourth proportional to 771,415.68, 1,156,414.59 and 265,856.58 is: 398,540.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,415.68 : 1,156,414.59 = 265,856.58 : x
  2. Step 2: Convert to fraction form
    771,415.68/1,156,414.59 = 265,856.58/x
  3. Step 3: Cross multiply
    771,415.68x = 1,156,414.59 × 265,856.58
  4. Step 4: Simplify right side
    771,415.68x = 307,440,427,959.50
  5. Step 5: Solve for x
    x = 307,440,427,959.50/771,415.68
  6. Step 6: Final answer
    x = 398,540.55

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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.