Home / 1,168,406.56-1,612,402.32-645,118.12

Finding the Fourth Proportional to 1,168,406.56, 1,612,402.32 and 645,118.12

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Solution

The fourth proportional to 1,168,406.56, 1,612,402.32 and 645,118.12 is: 890,263.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168,406.56 : 1,612,402.32 = 645,118.12 : x
  2. Step 2: Convert to fraction form
    1,168,406.56/1,612,402.32 = 645,118.12/x
  3. Step 3: Cross multiply
    1,168,406.56x = 1,612,402.32 × 645,118.12
  4. Step 4: Simplify right side
    1,168,406.56x = 1,040,189,953,362.04
  5. Step 5: Solve for x
    x = 1,040,189,953,362.04/1,168,406.56
  6. Step 6: Final answer
    x = 890,263.71

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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.