Home / 780,097.20-1,170,145.80-219,226.80

Finding the Fourth Proportional to 780,097.20, 1,170,145.80 and 219,226.80

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Solution

The fourth proportional to 780,097.20, 1,170,145.80 and 219,226.80 is: 328,840.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,097.20 : 1,170,145.80 = 219,226.80 : x
  2. Step 2: Convert to fraction form
    780,097.20/1,170,145.80 = 219,226.80/x
  3. Step 3: Cross multiply
    780,097.20x = 1,170,145.80 × 219,226.80
  4. Step 4: Simplify right side
    780,097.20x = 256,527,319,267.44
  5. Step 5: Solve for x
    x = 256,527,319,267.44/780,097.20
  6. Step 6: Final answer
    x = 328,840.20

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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.