Home / 1,993,731.40-2,987,033.10-1,213,323.40

Finding the Fourth Proportional to 1,993,731.40, 2,987,033.10 and 1,213,323.40

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Solution

The fourth proportional to 1,993,731.40, 2,987,033.10 and 1,213,323.40 is: 1,817,816.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,731.40 : 2,987,033.10 = 1,213,323.40 : x
  2. Step 2: Convert to fraction form
    1,993,731.40/2,987,033.10 = 1,213,323.40/x
  3. Step 3: Cross multiply
    1,993,731.40x = 2,987,033.10 × 1,213,323.40
  4. Step 4: Simplify right side
    1,993,731.40x = 3,624,237,156,804.54
  5. Step 5: Solve for x
    x = 3,624,237,156,804.54/1,993,731.40
  6. Step 6: Final answer
    x = 1,817,816.16

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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.