Home / 439,639.86-659,458.77-288,789.15

Finding the Fourth Proportional to 439,639.86, 659,458.77 and 288,789.15

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Solution

The fourth proportional to 439,639.86, 659,458.77 and 288,789.15 is: 433,183.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,639.86 : 659,458.77 = 288,789.15 : x
  2. Step 2: Convert to fraction form
    439,639.86/659,458.77 = 288,789.15/x
  3. Step 3: Cross multiply
    439,639.86x = 659,458.77 × 288,789.15
  4. Step 4: Simplify right side
    439,639.86x = 190,444,537,648.35
  5. Step 5: Solve for x
    x = 190,444,537,648.35/439,639.86
  6. Step 6: Final answer
    x = 433,183.05

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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.