Home / 745,076.88-1,028,207.52-405,544.32

Finding the Fourth Proportional to 745,076.88, 1,028,207.52 and 405,544.32

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Solution

The fourth proportional to 745,076.88, 1,028,207.52 and 405,544.32 is: 559,651.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,076.88 : 1,028,207.52 = 405,544.32 : x
  2. Step 2: Convert to fraction form
    745,076.88/1,028,207.52 = 405,544.32/x
  3. Step 3: Cross multiply
    745,076.88x = 1,028,207.52 × 405,544.32
  4. Step 4: Simplify right side
    745,076.88x = 416,983,719,517.29
  5. Step 5: Solve for x
    x = 416,983,719,517.29/745,076.88
  6. Step 6: Final answer
    x = 559,651.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.