Home / 815,256.86-1,221,638.28-341,683.88

Finding the Fourth Proportional to 815,256.86, 1,221,638.28 and 341,683.88

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Solution

The fourth proportional to 815,256.86, 1,221,638.28 and 341,683.88 is: 512,003.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,256.86 : 1,221,638.28 = 341,683.88 : x
  2. Step 2: Convert to fraction form
    815,256.86/1,221,638.28 = 341,683.88/x
  3. Step 3: Cross multiply
    815,256.86x = 1,221,638.28 × 341,683.88
  4. Step 4: Simplify right side
    815,256.86x = 417,414,107,466.93
  5. Step 5: Solve for x
    x = 417,414,107,466.93/815,256.86
  6. Step 6: Final answer
    x = 512,003.18

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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.