Home / 745,238.46-1,028,432.97-405,709.14

Finding the Fourth Proportional to 745,238.46, 1,028,432.97 and 405,709.14

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Solution

The fourth proportional to 745,238.46, 1,028,432.97 and 405,709.14 is: 559,880.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,238.46 : 1,028,432.97 = 405,709.14 : x
  2. Step 2: Convert to fraction form
    745,238.46/1,028,432.97 = 405,709.14/x
  3. Step 3: Cross multiply
    745,238.46x = 1,028,432.97 × 405,709.14
  4. Step 4: Simplify right side
    745,238.46x = 417,244,655,806.35
  5. Step 5: Solve for x
    x = 417,244,655,806.35/745,238.46
  6. Step 6: Final answer
    x = 559,880.73

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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.