Home / 1,380,460.14-2,068,945.47-621,493.38

Finding the Fourth Proportional to 1,380,460.14, 2,068,945.47 and 621,493.38

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Solution

The fourth proportional to 1,380,460.14, 2,068,945.47 and 621,493.38 is: 931,454.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,460.14 : 2,068,945.47 = 621,493.38 : x
  2. Step 2: Convert to fraction form
    1,380,460.14/2,068,945.47 = 621,493.38/x
  3. Step 3: Cross multiply
    1,380,460.14x = 2,068,945.47 × 621,493.38
  4. Step 4: Simplify right side
    1,380,460.14x = 1,285,835,913,185.99
  5. Step 5: Solve for x
    x = 1,285,835,913,185.99/1,380,460.14
  6. Step 6: Final answer
    x = 931,454.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.