Home / 767,173.05-1,151,468.60-388,359.63

Finding the Fourth Proportional to 767,173.05, 1,151,468.60 and 388,359.63

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Solution

The fourth proportional to 767,173.05, 1,151,468.60 and 388,359.63 is: 582,898.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,173.05 : 1,151,468.60 = 388,359.63 : x
  2. Step 2: Convert to fraction form
    767,173.05/1,151,468.60 = 388,359.63/x
  3. Step 3: Cross multiply
    767,173.05x = 1,151,468.60 × 388,359.63
  4. Step 4: Simplify right side
    767,173.05x = 447,183,917,510.82
  5. Step 5: Solve for x
    x = 447,183,917,510.82/767,173.05
  6. Step 6: Final answer
    x = 582,898.37

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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.