Home / 1,143,751.32-1,715,639.30-345,039.78

Finding the Fourth Proportional to 1,143,751.32, 1,715,639.30 and 345,039.78

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Solution

The fourth proportional to 1,143,751.32, 1,715,639.30 and 345,039.78 is: 517,563.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,751.32 : 1,715,639.30 = 345,039.78 : x
  2. Step 2: Convert to fraction form
    1,143,751.32/1,715,639.30 = 345,039.78/x
  3. Step 3: Cross multiply
    1,143,751.32x = 1,715,639.30 × 345,039.78
  4. Step 4: Simplify right side
    1,143,751.32x = 591,963,812,633.70
  5. Step 5: Solve for x
    x = 591,963,812,633.70/1,143,751.32
  6. Step 6: Final answer
    x = 517,563.39

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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.