Home / 1,189,496.12-1,641,506.30-645,632.02

Finding the Fourth Proportional to 1,189,496.12, 1,641,506.30 and 645,632.02

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Solution

The fourth proportional to 1,189,496.12, 1,641,506.30 and 645,632.02 is: 890,973.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,496.12 : 1,641,506.30 = 645,632.02 : x
  2. Step 2: Convert to fraction form
    1,189,496.12/1,641,506.30 = 645,632.02/x
  3. Step 3: Cross multiply
    1,189,496.12x = 1,641,506.30 × 645,632.02
  4. Step 4: Simplify right side
    1,189,496.12x = 1,059,809,028,311.73
  5. Step 5: Solve for x
    x = 1,059,809,028,311.73/1,189,496.12
  6. Step 6: Final answer
    x = 890,973.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.