Home / 1,189,496.75-1,641,507.17-645,632.65

Finding the Fourth Proportional to 1,189,496.75, 1,641,507.17 and 645,632.65

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Solution

The fourth proportional to 1,189,496.75, 1,641,507.17 and 645,632.65 is: 890,973.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,496.75 : 1,641,507.17 = 645,632.65 : x
  2. Step 2: Convert to fraction form
    1,189,496.75/1,641,507.17 = 645,632.65/x
  3. Step 3: Cross multiply
    1,189,496.75x = 1,641,507.17 × 645,632.65
  4. Step 4: Simplify right side
    1,189,496.75x = 1,059,810,624,161.10
  5. Step 5: Solve for x
    x = 1,059,810,624,161.10/1,189,496.75
  6. Step 6: Final answer
    x = 890,973.96

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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.