Home / 499,567.37-689,410.22-281,786.42

Finding the Fourth Proportional to 499,567.37, 689,410.22 and 281,786.42

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Solution

The fourth proportional to 499,567.37, 689,410.22 and 281,786.42 is: 388,869.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,567.37 : 689,410.22 = 281,786.42 : x
  2. Step 2: Convert to fraction form
    499,567.37/689,410.22 = 281,786.42/x
  3. Step 3: Cross multiply
    499,567.37x = 689,410.22 × 281,786.42
  4. Step 4: Simplify right side
    499,567.37x = 194,266,435,062.63
  5. Step 5: Solve for x
    x = 194,266,435,062.63/499,567.37
  6. Step 6: Final answer
    x = 388,869.35

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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.