Home / 1,386,975.20-2,080,624.80-440,441.60

Finding the Fourth Proportional to 1,386,975.20, 2,080,624.80 and 440,441.60

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Solution

The fourth proportional to 1,386,975.20, 2,080,624.80 and 440,441.60 is: 660,713.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,975.20 : 2,080,624.80 = 440,441.60 : x
  2. Step 2: Convert to fraction form
    1,386,975.20/2,080,624.80 = 440,441.60/x
  3. Step 3: Cross multiply
    1,386,975.20x = 2,080,624.80 × 440,441.60
  4. Step 4: Simplify right side
    1,386,975.20x = 916,393,715,911.68
  5. Step 5: Solve for x
    x = 916,393,715,911.68/1,386,975.20
  6. Step 6: Final answer
    x = 660,713.84

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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.