Home / 1,288,662.55-1,778,376.33-707,910.17

Finding the Fourth Proportional to 1,288,662.55, 1,778,376.33 and 707,910.17

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Solution

The fourth proportional to 1,288,662.55, 1,778,376.33 and 707,910.17 is: 976,928.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,662.55 : 1,778,376.33 = 707,910.17 : x
  2. Step 2: Convert to fraction form
    1,288,662.55/1,778,376.33 = 707,910.17/x
  3. Step 3: Cross multiply
    1,288,662.55x = 1,778,376.33 × 707,910.17
  4. Step 4: Simplify right side
    1,288,662.55x = 1,258,930,681,202.39
  5. Step 5: Solve for x
    x = 1,258,930,681,202.39/1,288,662.55
  6. Step 6: Final answer
    x = 976,928.12

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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.