Home / 919,158.86-1,378,775.37-320,180.60

Finding the Fourth Proportional to 919,158.86, 1,378,775.37 and 320,180.60

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Solution

The fourth proportional to 919,158.86, 1,378,775.37 and 320,180.60 is: 480,283.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,158.86 : 1,378,775.37 = 320,180.60 : x
  2. Step 2: Convert to fraction form
    919,158.86/1,378,775.37 = 320,180.60/x
  3. Step 3: Cross multiply
    919,158.86x = 1,378,775.37 × 320,180.60
  4. Step 4: Simplify right side
    919,158.86x = 441,457,125,231.82
  5. Step 5: Solve for x
    x = 441,457,125,231.82/919,158.86
  6. Step 6: Final answer
    x = 480,283.82

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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.