Home / 790,693.20-1,186,112.70-258,217.02

Finding the Fourth Proportional to 790,693.20, 1,186,112.70 and 258,217.02

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Solution

The fourth proportional to 790,693.20, 1,186,112.70 and 258,217.02 is: 387,349.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,693.20 : 1,186,112.70 = 258,217.02 : x
  2. Step 2: Convert to fraction form
    790,693.20/1,186,112.70 = 258,217.02/x
  3. Step 3: Cross multiply
    790,693.20x = 1,186,112.70 × 258,217.02
  4. Step 4: Simplify right side
    790,693.20x = 306,274,486,778.15
  5. Step 5: Solve for x
    x = 306,274,486,778.15/790,693.20
  6. Step 6: Final answer
    x = 387,349.34

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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.