Home / 1,188,136.90-1,781,493.61-378,171.46

Finding the Fourth Proportional to 1,188,136.90, 1,781,493.61 and 378,171.46

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Solution

The fourth proportional to 1,188,136.90, 1,781,493.61 and 378,171.46 is: 567,030.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,136.90 : 1,781,493.61 = 378,171.46 : x
  2. Step 2: Convert to fraction form
    1,188,136.90/1,781,493.61 = 378,171.46/x
  3. Step 3: Cross multiply
    1,188,136.90x = 1,781,493.61 × 378,171.46
  4. Step 4: Simplify right side
    1,188,136.90x = 673,710,039,474.37
  5. Step 5: Solve for x
    x = 673,710,039,474.37/1,188,136.90
  6. Step 6: Final answer
    x = 567,030.65

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1.5x scale

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.