Home / 1,188,149.20-1,782,005.10-738,064.60

Finding the Fourth Proportional to 1,188,149.20, 1,782,005.10 and 738,064.60

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Solution

The fourth proportional to 1,188,149.20, 1,782,005.10 and 738,064.60 is: 1,106,961.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,149.20 : 1,782,005.10 = 738,064.60 : x
  2. Step 2: Convert to fraction form
    1,188,149.20/1,782,005.10 = 738,064.60/x
  3. Step 3: Cross multiply
    1,188,149.20x = 1,782,005.10 × 738,064.60
  4. Step 4: Simplify right side
    1,188,149.20x = 1,315,234,881,329.46
  5. Step 5: Solve for x
    x = 1,315,234,881,329.46/1,188,149.20
  6. Step 6: Final answer
    x = 1,106,961.05

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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.