Home / 686,083.40-1,028,928.27-477,049.94

Finding the Fourth Proportional to 686,083.40, 1,028,928.27 and 477,049.94

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Solution

The fourth proportional to 686,083.40, 1,028,928.27 and 477,049.94 is: 715,438.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,083.40 : 1,028,928.27 = 477,049.94 : x
  2. Step 2: Convert to fraction form
    686,083.40/1,028,928.27 = 477,049.94/x
  3. Step 3: Cross multiply
    686,083.40x = 1,028,928.27 × 477,049.94
  4. Step 4: Simplify right side
    686,083.40x = 490,850,169,467.80
  5. Step 5: Solve for x
    x = 490,850,169,467.80/686,083.40
  6. Step 6: Final answer
    x = 715,438.05

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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.