Home / 718,311.80-1,077,467.70-419,130.20

Finding the Fourth Proportional to 718,311.80, 1,077,467.70 and 419,130.20

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Solution

The fourth proportional to 718,311.80, 1,077,467.70 and 419,130.20 is: 628,695.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,311.80 : 1,077,467.70 = 419,130.20 : x
  2. Step 2: Convert to fraction form
    718,311.80/1,077,467.70 = 419,130.20/x
  3. Step 3: Cross multiply
    718,311.80x = 1,077,467.70 × 419,130.20
  4. Step 4: Simplify right side
    718,311.80x = 451,599,252,594.54
  5. Step 5: Solve for x
    x = 451,599,252,594.54/718,311.80
  6. Step 6: Final answer
    x = 628,695.30

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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.