Home / 810,489.78-1,118,501.62-442,958.86

Finding the Fourth Proportional to 810,489.78, 1,118,501.62 and 442,958.86

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Solution

The fourth proportional to 810,489.78, 1,118,501.62 and 442,958.86 is: 611,297.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,489.78 : 1,118,501.62 = 442,958.86 : x
  2. Step 2: Convert to fraction form
    810,489.78/1,118,501.62 = 442,958.86/x
  3. Step 3: Cross multiply
    810,489.78x = 1,118,501.62 × 442,958.86
  4. Step 4: Simplify right side
    810,489.78x = 495,450,202,503.35
  5. Step 5: Solve for x
    x = 495,450,202,503.35/810,489.78
  6. Step 6: Final answer
    x = 611,297.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.