Home / 664,485.46-916,890.61-374,054.58

Finding the Fourth Proportional to 664,485.46, 916,890.61 and 374,054.58

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Solution

The fourth proportional to 664,485.46, 916,890.61 and 374,054.58 is: 516,139.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,485.46 : 916,890.61 = 374,054.58 : x
  2. Step 2: Convert to fraction form
    664,485.46/916,890.61 = 374,054.58/x
  3. Step 3: Cross multiply
    664,485.46x = 916,890.61 × 374,054.58
  4. Step 4: Simplify right side
    664,485.46x = 342,967,132,029.49
  5. Step 5: Solve for x
    x = 342,967,132,029.49/664,485.46
  6. Step 6: Final answer
    x = 516,139.41

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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.