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Finding the Fourth Proportional to 439,660.20, 659,879.10 and 376,674.60

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Solution

The fourth proportional to 439,660.20, 659,879.10 and 376,674.60 is: 565,345.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,660.20 : 659,879.10 = 376,674.60 : x
  2. Step 2: Convert to fraction form
    439,660.20/659,879.10 = 376,674.60/x
  3. Step 3: Cross multiply
    439,660.20x = 659,879.10 × 376,674.60
  4. Step 4: Simplify right side
    439,660.20x = 248,559,696,040.86
  5. Step 5: Solve for x
    x = 248,559,696,040.86/439,660.20
  6. Step 6: Final answer
    x = 565,345.00

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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.