Home / 1,791,378.72-2,686,975.84-669,359.52

Finding the Fourth Proportional to 1,791,378.72, 2,686,975.84 and 669,359.52

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Solution

The fourth proportional to 1,791,378.72, 2,686,975.84 and 669,359.52 is: 1,004,004.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,791,378.72 : 2,686,975.84 = 669,359.52 : x
  2. Step 2: Convert to fraction form
    1,791,378.72/2,686,975.84 = 669,359.52/x
  3. Step 3: Cross multiply
    1,791,378.72x = 2,686,975.84 × 669,359.52
  4. Step 4: Simplify right side
    1,791,378.72x = 1,798,552,858,514.00
  5. Step 5: Solve for x
    x = 1,798,552,858,514.00/1,791,378.72
  6. Step 6: Final answer
    x = 1,004,004.81

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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.