Home / 987,728.86-1,481,582.49-239,774.86

Finding the Fourth Proportional to 987,728.86, 1,481,582.49 and 239,774.86

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Solution

The fourth proportional to 987,728.86, 1,481,582.49 and 239,774.86 is: 359,659.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,728.86 : 1,481,582.49 = 239,774.86 : x
  2. Step 2: Convert to fraction form
    987,728.86/1,481,582.49 = 239,774.86/x
  3. Step 3: Cross multiply
    987,728.86x = 1,481,582.49 × 239,774.86
  4. Step 4: Simplify right side
    987,728.86x = 355,246,234,118.20
  5. Step 5: Solve for x
    x = 355,246,234,118.20/987,728.86
  6. Step 6: Final answer
    x = 359,659.67

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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.