Home / 2,166,954.72-2,991,199.92-1,307,551.20

Finding the Fourth Proportional to 2,166,954.72, 2,991,199.92 and 1,307,551.20

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Solution

The fourth proportional to 2,166,954.72, 2,991,199.92 and 1,307,551.20 is: 1,804,904.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,166,954.72 : 2,991,199.92 = 1,307,551.20 : x
  2. Step 2: Convert to fraction form
    2,166,954.72/2,991,199.92 = 1,307,551.20/x
  3. Step 3: Cross multiply
    2,166,954.72x = 2,991,199.92 × 1,307,551.20
  4. Step 4: Simplify right side
    2,166,954.72x = 3,911,147,044,835.90
  5. Step 5: Solve for x
    x = 3,911,147,044,835.90/2,166,954.72
  6. Step 6: Final answer
    x = 1,804,904.83

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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.