Home / 2,661,199.40-3,987,206.40-1,238,337.20

Finding the Fourth Proportional to 2,661,199.40, 3,987,206.40 and 1,238,337.20

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Solution

The fourth proportional to 2,661,199.40, 3,987,206.40 and 1,238,337.20 is: 1,855,368.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,661,199.40 : 3,987,206.40 = 1,238,337.20 : x
  2. Step 2: Convert to fraction form
    2,661,199.40/3,987,206.40 = 1,238,337.20/x
  3. Step 3: Cross multiply
    2,661,199.40x = 3,987,206.40 × 1,238,337.20
  4. Step 4: Simplify right side
    2,661,199.40x = 4,937,506,009,198.08
  5. Step 5: Solve for x
    x = 4,937,506,009,198.08/2,661,199.40
  6. Step 6: Final answer
    x = 1,855,368.68

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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.