Home / 664,079.73-916,359.37-373,686.23

Finding the Fourth Proportional to 664,079.73, 916,359.37 and 373,686.23

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Solution

The fourth proportional to 664,079.73, 916,359.37 and 373,686.23 is: 515,647.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,079.73 : 916,359.37 = 373,686.23 : x
  2. Step 2: Convert to fraction form
    664,079.73/916,359.37 = 373,686.23/x
  3. Step 3: Cross multiply
    664,079.73x = 916,359.37 × 373,686.23
  4. Step 4: Simplify right side
    664,079.73x = 342,430,871,850.25
  5. Step 5: Solve for x
    x = 342,430,871,850.25/664,079.73
  6. Step 6: Final answer
    x = 515,647.23

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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.