Home / 2,159,605.80-3,240,064.80-1,212,343.20

Finding the Fourth Proportional to 2,159,605.80, 3,240,064.80 and 1,212,343.20

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Solution

The fourth proportional to 2,159,605.80, 3,240,064.80 and 1,212,343.20 is: 1,818,883.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,159,605.80 : 3,240,064.80 = 1,212,343.20 : x
  2. Step 2: Convert to fraction form
    2,159,605.80/3,240,064.80 = 1,212,343.20/x
  3. Step 3: Cross multiply
    2,159,605.80x = 3,240,064.80 × 1,212,343.20
  4. Step 4: Simplify right side
    2,159,605.80x = 3,928,070,527,839.36
  5. Step 5: Solve for x
    x = 3,928,070,527,839.36/2,159,605.80
  6. Step 6: Final answer
    x = 1,818,883.12

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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.