Home / 1,298,972.89-1,947,961.05-445,885.57

Finding the Fourth Proportional to 1,298,972.89, 1,947,961.05 and 445,885.57

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Solution

The fourth proportional to 1,298,972.89, 1,947,961.05 and 445,885.57 is: 668,657.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,972.89 : 1,947,961.05 = 445,885.57 : x
  2. Step 2: Convert to fraction form
    1,298,972.89/1,947,961.05 = 445,885.57/x
  3. Step 3: Cross multiply
    1,298,972.89x = 1,947,961.05 × 445,885.57
  4. Step 4: Simplify right side
    1,298,972.89x = 868,567,723,117.05
  5. Step 5: Solve for x
    x = 868,567,723,117.05/1,298,972.89
  6. Step 6: Final answer
    x = 668,657.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.