Home / 293,428.37-442,405.40-291,606.73

Finding the Fourth Proportional to 293,428.37, 442,405.40 and 291,606.73

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Solution

The fourth proportional to 293,428.37, 442,405.40 and 291,606.73 is: 439,658.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,428.37 : 442,405.40 = 291,606.73 : x
  2. Step 2: Convert to fraction form
    293,428.37/442,405.40 = 291,606.73/x
  3. Step 3: Cross multiply
    293,428.37x = 442,405.40 × 291,606.73
  4. Step 4: Simplify right side
    293,428.37x = 129,008,389,464.30
  5. Step 5: Solve for x
    x = 129,008,389,464.30/293,428.37
  6. Step 6: Final answer
    x = 439,658.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.