Home / 656,311.02-905,709.24-354,505.02

Finding the Fourth Proportional to 656,311.02, 905,709.24 and 354,505.02

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Solution

The fourth proportional to 656,311.02, 905,709.24 and 354,505.02 is: 489,216.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,311.02 : 905,709.24 = 354,505.02 : x
  2. Step 2: Convert to fraction form
    656,311.02/905,709.24 = 354,505.02/x
  3. Step 3: Cross multiply
    656,311.02x = 905,709.24 × 354,505.02
  4. Step 4: Simplify right side
    656,311.02x = 321,078,472,240.39
  5. Step 5: Solve for x
    x = 321,078,472,240.39/656,311.02
  6. Step 6: Final answer
    x = 489,216.95

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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.