Home / 745,240.46-1,028,435.73-405,711.14

Finding the Fourth Proportional to 745,240.46, 1,028,435.73 and 405,711.14

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Solution

The fourth proportional to 745,240.46, 1,028,435.73 and 405,711.14 is: 559,883.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,240.46 : 1,028,435.73 = 405,711.14 : x
  2. Step 2: Convert to fraction form
    745,240.46/1,028,435.73 = 405,711.14/x
  3. Step 3: Cross multiply
    745,240.46x = 1,028,435.73 × 405,711.14
  4. Step 4: Simplify right side
    745,240.46x = 417,247,832,435.03
  5. Step 5: Solve for x
    x = 417,247,832,435.03/745,240.46
  6. Step 6: Final answer
    x = 559,883.49

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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.