Home / 1,188,007.20-1,780,455.60-477,453.60

Finding the Fourth Proportional to 1,188,007.20, 1,780,455.60 and 477,453.60

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Solution

The fourth proportional to 1,188,007.20, 1,780,455.60 and 477,453.60 is: 715,555.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,007.20 : 1,780,455.60 = 477,453.60 : x
  2. Step 2: Convert to fraction form
    1,188,007.20/1,780,455.60 = 477,453.60/x
  3. Step 3: Cross multiply
    1,188,007.20x = 1,780,455.60 × 477,453.60
  4. Step 4: Simplify right side
    1,188,007.20x = 850,084,935,860.16
  5. Step 5: Solve for x
    x = 850,084,935,860.16/1,188,007.20
  6. Step 6: Final answer
    x = 715,555.37

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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.