Home / 1,436,743-2,155,115.31-439,471

Finding the Fourth Proportional to 1,436,743, 2,155,115.31 and 439,471

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Solution

The fourth proportional to 1,436,743, 2,155,115.31 and 439,471 is: 659,206.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,436,743 : 2,155,115.31 = 439,471 : x
  2. Step 2: Convert to fraction form
    1,436,743/2,155,115.31 = 439,471/x
  3. Step 3: Cross multiply
    1,436,743x = 2,155,115.31 × 439,471
  4. Step 4: Simplify right side
    1,436,743x = 947,110,680,401.01
  5. Step 5: Solve for x
    x = 947,110,680,401.01/1,436,743
  6. Step 6: Final answer
    x = 659,206.75

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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.