Home / 1,405,643.82-2,108,465.69-340,685.91

Finding the Fourth Proportional to 1,405,643.82, 2,108,465.69 and 340,685.91

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Solution

The fourth proportional to 1,405,643.82, 2,108,465.69 and 340,685.91 is: 511,028.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,643.82 : 2,108,465.69 = 340,685.91 : x
  2. Step 2: Convert to fraction form
    1,405,643.82/2,108,465.69 = 340,685.91/x
  3. Step 3: Cross multiply
    1,405,643.82x = 2,108,465.69 × 340,685.91
  4. Step 4: Simplify right side
    1,405,643.82x = 718,324,550,598.00
  5. Step 5: Solve for x
    x = 718,324,550,598.00/1,405,643.82
  6. Step 6: Final answer
    x = 511,028.85

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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.