Home / 1,138,739.56-1,707,528.39-380,307.82

Finding the Fourth Proportional to 1,138,739.56, 1,707,528.39 and 380,307.82

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Solution

The fourth proportional to 1,138,739.56, 1,707,528.39 and 380,307.82 is: 570,267.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,739.56 : 1,707,528.39 = 380,307.82 : x
  2. Step 2: Convert to fraction form
    1,138,739.56/1,707,528.39 = 380,307.82/x
  3. Step 3: Cross multiply
    1,138,739.56x = 1,707,528.39 × 380,307.82
  4. Step 4: Simplify right side
    1,138,739.56x = 649,386,399,589.01
  5. Step 5: Solve for x
    x = 649,386,399,589.01/1,138,739.56
  6. Step 6: Final answer
    x = 570,267.71

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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.