Home / 1,230,509.80-1,846,023.90-520,172.20

Finding the Fourth Proportional to 1,230,509.80, 1,846,023.90 and 520,172.20

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Solution

The fourth proportional to 1,230,509.80, 1,846,023.90 and 520,172.20 is: 780,367.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,509.80 : 1,846,023.90 = 520,172.20 : x
  2. Step 2: Convert to fraction form
    1,230,509.80/1,846,023.90 = 520,172.20/x
  3. Step 3: Cross multiply
    1,230,509.80x = 1,846,023.90 × 520,172.20
  4. Step 4: Simplify right side
    1,230,509.80x = 960,250,313,315.58
  5. Step 5: Solve for x
    x = 960,250,313,315.58/1,230,509.80
  6. Step 6: Final answer
    x = 780,367.87

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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.