Home / 677,719.40-1,016,982.30-257,037.80

Finding the Fourth Proportional to 677,719.40, 1,016,982.30 and 257,037.80

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Solution

The fourth proportional to 677,719.40, 1,016,982.30 and 257,037.80 is: 385,709.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,719.40 : 1,016,982.30 = 257,037.80 : x
  2. Step 2: Convert to fraction form
    677,719.40/1,016,982.30 = 257,037.80/x
  3. Step 3: Cross multiply
    677,719.40x = 1,016,982.30 × 257,037.80
  4. Step 4: Simplify right side
    677,719.40x = 261,402,893,030.94
  5. Step 5: Solve for x
    x = 261,402,893,030.94/677,719.40
  6. Step 6: Final answer
    x = 385,709.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.