Home / 790,168.64-1,185,291.20-257,688.96

Finding the Fourth Proportional to 790,168.64, 1,185,291.20 and 257,688.96

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Solution

The fourth proportional to 790,168.64, 1,185,291.20 and 257,688.96 is: 386,545.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,168.64 : 1,185,291.20 = 257,688.96 : x
  2. Step 2: Convert to fraction form
    790,168.64/1,185,291.20 = 257,688.96/x
  3. Step 3: Cross multiply
    790,168.64x = 1,185,291.20 × 257,688.96
  4. Step 4: Simplify right side
    790,168.64x = 305,436,456,625.15
  5. Step 5: Solve for x
    x = 305,436,456,625.15/790,168.64
  6. Step 6: Final answer
    x = 386,545.91

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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.