Home / 1,145,429.10-1,718,143.65-665,163.90

Finding the Fourth Proportional to 1,145,429.10, 1,718,143.65 and 665,163.90

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Solution

The fourth proportional to 1,145,429.10, 1,718,143.65 and 665,163.90 is: 997,745.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,429.10 : 1,718,143.65 = 665,163.90 : x
  2. Step 2: Convert to fraction form
    1,145,429.10/1,718,143.65 = 665,163.90/x
  3. Step 3: Cross multiply
    1,145,429.10x = 1,718,143.65 × 665,163.90
  4. Step 4: Simplify right side
    1,145,429.10x = 1,142,847,130,994.23
  5. Step 5: Solve for x
    x = 1,142,847,130,994.23/1,145,429.10
  6. Step 6: Final answer
    x = 997,745.85

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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.