Home / 925,745.46-1,388,259.18-318,418.30

Finding the Fourth Proportional to 925,745.46, 1,388,259.18 and 318,418.30

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Solution

The fourth proportional to 925,745.46, 1,388,259.18 and 318,418.30 is: 477,503.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,745.46 : 1,388,259.18 = 318,418.30 : x
  2. Step 2: Convert to fraction form
    925,745.46/1,388,259.18 = 318,418.30/x
  3. Step 3: Cross multiply
    925,745.46x = 1,388,259.18 × 318,418.30
  4. Step 4: Simplify right side
    925,745.46x = 442,047,128,054.99
  5. Step 5: Solve for x
    x = 442,047,128,054.99/925,745.46
  6. Step 6: Final answer
    x = 477,503.97

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1.5x scale

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.