Home / 3,686,215.71-5,529,318.81-990,540.98

Finding the Fourth Proportional to 3,686,215.71, 5,529,318.81 and 990,540.98

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Solution

The fourth proportional to 3,686,215.71, 5,529,318.81 and 990,540.98 is: 1,485,810.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,686,215.71 : 5,529,318.81 = 990,540.98 : x
  2. Step 2: Convert to fraction form
    3,686,215.71/5,529,318.81 = 990,540.98/x
  3. Step 3: Cross multiply
    3,686,215.71x = 5,529,318.81 × 990,540.98
  4. Step 4: Simplify right side
    3,686,215.71x = 5,477,016,845,143.24
  5. Step 5: Solve for x
    x = 5,477,016,845,143.24/3,686,215.71
  6. Step 6: Final answer
    x = 1,485,810.18

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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.