Home / 745,164.98-1,028,438.39-439,143.52

Finding the Fourth Proportional to 745,164.98, 1,028,438.39 and 439,143.52

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Solution

The fourth proportional to 745,164.98, 1,028,438.39 and 439,143.52 is: 606,083.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,164.98 : 1,028,438.39 = 439,143.52 : x
  2. Step 2: Convert to fraction form
    745,164.98/1,028,438.39 = 439,143.52/x
  3. Step 3: Cross multiply
    745,164.98x = 1,028,438.39 × 439,143.52
  4. Step 4: Simplify right side
    745,164.98x = 451,632,054,687.73
  5. Step 5: Solve for x
    x = 451,632,054,687.73/745,164.98
  6. Step 6: Final answer
    x = 606,083.31

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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.