Home / 838,401.76-1,257,976.39-305,798.28

Finding the Fourth Proportional to 838,401.76, 1,257,976.39 and 305,798.28

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Solution

The fourth proportional to 838,401.76, 1,257,976.39 and 305,798.28 is: 458,833.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,401.76 : 1,257,976.39 = 305,798.28 : x
  2. Step 2: Convert to fraction form
    838,401.76/1,257,976.39 = 305,798.28/x
  3. Step 3: Cross multiply
    838,401.76x = 1,257,976.39 × 305,798.28
  4. Step 4: Simplify right side
    838,401.76x = 384,687,016,342.61
  5. Step 5: Solve for x
    x = 384,687,016,342.61/838,401.76
  6. Step 6: Final answer
    x = 458,833.74

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1.5x scale

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.