Home / 925,969.20-1,388,297.70-420,772.20

Finding the Fourth Proportional to 925,969.20, 1,388,297.70 and 420,772.20

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Solution

The fourth proportional to 925,969.20, 1,388,297.70 and 420,772.20 is: 630,860.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,969.20 : 1,388,297.70 = 420,772.20 : x
  2. Step 2: Convert to fraction form
    925,969.20/1,388,297.70 = 420,772.20/x
  3. Step 3: Cross multiply
    925,969.20x = 1,388,297.70 × 420,772.20
  4. Step 4: Simplify right side
    925,969.20x = 584,157,077,483.94
  5. Step 5: Solve for x
    x = 584,157,077,483.94/925,969.20
  6. Step 6: Final answer
    x = 630,860.16

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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.