Home / 1,665,107.70-2,497,661.55-1,213,710.90

Finding the Fourth Proportional to 1,665,107.70, 2,497,661.55 and 1,213,710.90

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Solution

The fourth proportional to 1,665,107.70, 2,497,661.55 and 1,213,710.90 is: 1,820,566.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,665,107.70 : 2,497,661.55 = 1,213,710.90 : x
  2. Step 2: Convert to fraction form
    1,665,107.70/2,497,661.55 = 1,213,710.90/x
  3. Step 3: Cross multiply
    1,665,107.70x = 2,497,661.55 × 1,213,710.90
  4. Step 4: Simplify right side
    1,665,107.70x = 3,031,439,047,745.89
  5. Step 5: Solve for x
    x = 3,031,439,047,745.89/1,665,107.70
  6. Step 6: Final answer
    x = 1,820,566.35

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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.