Home / 745,115.45-1,028,419.55-454,664.79

Finding the Fourth Proportional to 745,115.45, 1,028,419.55 and 454,664.79

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Solution

The fourth proportional to 745,115.45, 1,028,419.55 and 454,664.79 is: 627,535.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,115.45 : 1,028,419.55 = 454,664.79 : x
  2. Step 2: Convert to fraction form
    745,115.45/1,028,419.55 = 454,664.79/x
  3. Step 3: Cross multiply
    745,115.45x = 1,028,419.55 × 454,664.79
  4. Step 4: Simplify right side
    745,115.45x = 467,586,153,590.55
  5. Step 5: Solve for x
    x = 467,586,153,590.55/745,115.45
  6. Step 6: Final answer
    x = 627,535.18

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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.