Home / 1,100,684.53-1,651,190.84-390,653.11

Finding the Fourth Proportional to 1,100,684.53, 1,651,190.84 and 390,653.11

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Solution

The fourth proportional to 1,100,684.53, 1,651,190.84 and 390,653.11 is: 586,037.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,684.53 : 1,651,190.84 = 390,653.11 : x
  2. Step 2: Convert to fraction form
    1,100,684.53/1,651,190.84 = 390,653.11/x
  3. Step 3: Cross multiply
    1,100,684.53x = 1,651,190.84 × 390,653.11
  4. Step 4: Simplify right side
    1,100,684.53x = 645,042,836,849.51
  5. Step 5: Solve for x
    x = 645,042,836,849.51/1,100,684.53
  6. Step 6: Final answer
    x = 586,037.89

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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.