Home / 1,787,231.80-2,680,847.70-665,068.60

Finding the Fourth Proportional to 1,787,231.80, 2,680,847.70 and 665,068.60

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Solution

The fourth proportional to 1,787,231.80, 2,680,847.70 and 665,068.60 is: 997,602.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787,231.80 : 2,680,847.70 = 665,068.60 : x
  2. Step 2: Convert to fraction form
    1,787,231.80/2,680,847.70 = 665,068.60/x
  3. Step 3: Cross multiply
    1,787,231.80x = 2,680,847.70 × 665,068.60
  4. Step 4: Simplify right side
    1,787,231.80x = 1,782,947,626,652.22
  5. Step 5: Solve for x
    x = 1,782,947,626,652.22/1,787,231.80
  6. Step 6: Final answer
    x = 997,602.90

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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.