Home / 571,716.95-856,432.04-343,886.78

Finding the Fourth Proportional to 571,716.95, 856,432.04 and 343,886.78

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Solution

The fourth proportional to 571,716.95, 856,432.04 and 343,886.78 is: 515,142.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,716.95 : 856,432.04 = 343,886.78 : x
  2. Step 2: Convert to fraction form
    571,716.95/856,432.04 = 343,886.78/x
  3. Step 3: Cross multiply
    571,716.95x = 856,432.04 × 343,886.78
  4. Step 4: Simplify right side
    571,716.95x = 294,515,652,242.27
  5. Step 5: Solve for x
    x = 294,515,652,242.27/571,716.95
  6. Step 6: Final answer
    x = 515,142.42

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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.