Home / 3,208,455-4,427,667.90-1,919,349.72

Finding the Fourth Proportional to 3,208,455, 4,427,667.90 and 1,919,349.72

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Solution

The fourth proportional to 3,208,455, 4,427,667.90 and 1,919,349.72 is: 2,648,702.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,208,455 : 4,427,667.90 = 1,919,349.72 : x
  2. Step 2: Convert to fraction form
    3,208,455/4,427,667.90 = 1,919,349.72/x
  3. Step 3: Cross multiply
    3,208,455x = 4,427,667.90 × 1,919,349.72
  4. Step 4: Simplify right side
    3,208,455x = 8,498,243,144,117.99
  5. Step 5: Solve for x
    x = 8,498,243,144,117.99/3,208,455
  6. Step 6: Final answer
    x = 2,648,702.61

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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.