Home / 815,156.34-1,222,790.70-341,364.66

Finding the Fourth Proportional to 815,156.34, 1,222,790.70 and 341,364.66

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Solution

The fourth proportional to 815,156.34, 1,222,790.70 and 341,364.66 is: 512,070.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,156.34 : 1,222,790.70 = 341,364.66 : x
  2. Step 2: Convert to fraction form
    815,156.34/1,222,790.70 = 341,364.66/x
  3. Step 3: Cross multiply
    815,156.34x = 1,222,790.70 × 341,364.66
  4. Step 4: Simplify right side
    815,156.34x = 417,417,531,556.66
  5. Step 5: Solve for x
    x = 417,417,531,556.66/815,156.34
  6. Step 6: Final answer
    x = 512,070.52

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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.