Home / 664,330.26-916,825.02-377,942.60

Finding the Fourth Proportional to 664,330.26, 916,825.02 and 377,942.60

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Solution

The fourth proportional to 664,330.26, 916,825.02 and 377,942.60 is: 521,588.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,330.26 : 916,825.02 = 377,942.60 : x
  2. Step 2: Convert to fraction form
    664,330.26/916,825.02 = 377,942.60/x
  3. Step 3: Cross multiply
    664,330.26x = 916,825.02 × 377,942.60
  4. Step 4: Simplify right side
    664,330.26x = 346,507,231,803.85
  5. Step 5: Solve for x
    x = 346,507,231,803.85/664,330.26
  6. Step 6: Final answer
    x = 521,588.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.