Home / 439,927.20-659,890.80-307,216.80

Finding the Fourth Proportional to 439,927.20, 659,890.80 and 307,216.80

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Solution

The fourth proportional to 439,927.20, 659,890.80 and 307,216.80 is: 460,825.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,927.20 : 659,890.80 = 307,216.80 : x
  2. Step 2: Convert to fraction form
    439,927.20/659,890.80 = 307,216.80/x
  3. Step 3: Cross multiply
    439,927.20x = 659,890.80 × 307,216.80
  4. Step 4: Simplify right side
    439,927.20x = 202,729,539,925.44
  5. Step 5: Solve for x
    x = 202,729,539,925.44/439,927.20
  6. Step 6: Final answer
    x = 460,825.20

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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.