Home / 439,639.98-659,458.96-288,789.28

Finding the Fourth Proportional to 439,639.98, 659,458.96 and 288,789.28

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Solution

The fourth proportional to 439,639.98, 659,458.96 and 288,789.28 is: 433,183.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,639.98 : 659,458.96 = 288,789.28 : x
  2. Step 2: Convert to fraction form
    439,639.98/659,458.96 = 288,789.28/x
  3. Step 3: Cross multiply
    439,639.98x = 659,458.96 × 288,789.28
  4. Step 4: Simplify right side
    439,639.98x = 190,444,678,247.95
  5. Step 5: Solve for x
    x = 190,444,678,247.95/439,639.98
  6. Step 6: Final answer
    x = 433,183.26

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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.