Home / 925,563.80-1,388,519.50-420,160.26

Finding the Fourth Proportional to 925,563.80, 1,388,519.50 and 420,160.26

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Solution

The fourth proportional to 925,563.80, 1,388,519.50 and 420,160.26 is: 630,319.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,563.80 : 1,388,519.50 = 420,160.26 : x
  2. Step 2: Convert to fraction form
    925,563.80/1,388,519.50 = 420,160.26/x
  3. Step 3: Cross multiply
    925,563.80x = 1,388,519.50 × 420,160.26
  4. Step 4: Simplify right side
    925,563.80x = 583,400,714,135.07
  5. Step 5: Solve for x
    x = 583,400,714,135.07/925,563.80
  6. Step 6: Final answer
    x = 630,319.29

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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.