Home / 790,730.70-1,186,168.86-258,254.52

Finding the Fourth Proportional to 790,730.70, 1,186,168.86 and 258,254.52

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Solution

The fourth proportional to 790,730.70, 1,186,168.86 and 258,254.52 is: 387,405.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,730.70 : 1,186,168.86 = 258,254.52 : x
  2. Step 2: Convert to fraction form
    790,730.70/1,186,168.86 = 258,254.52/x
  3. Step 3: Cross multiply
    790,730.70x = 1,186,168.86 × 258,254.52
  4. Step 4: Simplify right side
    790,730.70x = 306,333,469,578.25
  5. Step 5: Solve for x
    x = 306,333,469,578.25/790,730.70
  6. Step 6: Final answer
    x = 387,405.56

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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.