Home / 485,110.40-727,665.60-298,227.20

Finding the Fourth Proportional to 485,110.40, 727,665.60 and 298,227.20

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Solution

The fourth proportional to 485,110.40, 727,665.60 and 298,227.20 is: 447,340.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,110.40 : 727,665.60 = 298,227.20 : x
  2. Step 2: Convert to fraction form
    485,110.40/727,665.60 = 298,227.20/x
  3. Step 3: Cross multiply
    485,110.40x = 727,665.60 × 298,227.20
  4. Step 4: Simplify right side
    485,110.40x = 217,009,674,424.32
  5. Step 5: Solve for x
    x = 217,009,674,424.32/485,110.40
  6. Step 6: Final answer
    x = 447,340.80

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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.