Home / 1,215,337.82-1,676,639.25-731,622.69

Finding the Fourth Proportional to 1,215,337.82, 1,676,639.25 and 731,622.69

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Solution

The fourth proportional to 1,215,337.82, 1,676,639.25 and 731,622.69 is: 1,009,322.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,337.82 : 1,676,639.25 = 731,622.69 : x
  2. Step 2: Convert to fraction form
    1,215,337.82/1,676,639.25 = 731,622.69/x
  3. Step 3: Cross multiply
    1,215,337.82x = 1,676,639.25 × 731,622.69
  4. Step 4: Simplify right side
    1,215,337.82x = 1,226,667,318,244.58
  5. Step 5: Solve for x
    x = 1,226,667,318,244.58/1,215,337.82
  6. Step 6: Final answer
    x = 1,009,322.10

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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.