Home / 1,211,528.70-1,813,793.85-739,136.70

Finding the Fourth Proportional to 1,211,528.70, 1,813,793.85 and 739,136.70

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Solution

The fourth proportional to 1,211,528.70, 1,813,793.85 and 739,136.70 is: 1,106,570.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,528.70 : 1,813,793.85 = 739,136.70 : x
  2. Step 2: Convert to fraction form
    1,211,528.70/1,813,793.85 = 739,136.70/x
  3. Step 3: Cross multiply
    1,211,528.70x = 1,813,793.85 × 739,136.70
  4. Step 4: Simplify right side
    1,211,528.70x = 1,340,641,600,769.30
  5. Step 5: Solve for x
    x = 1,340,641,600,769.30/1,211,528.70
  6. Step 6: Final answer
    x = 1,106,570.24

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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.