Home / 3,072,080.80-4,608,121.20-828,445.60

Finding the Fourth Proportional to 3,072,080.80, 4,608,121.20 and 828,445.60

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Solution

The fourth proportional to 3,072,080.80, 4,608,121.20 and 828,445.60 is: 1,242,668.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072,080.80 : 4,608,121.20 = 828,445.60 : x
  2. Step 2: Convert to fraction form
    3,072,080.80/4,608,121.20 = 828,445.60/x
  3. Step 3: Cross multiply
    3,072,080.80x = 4,608,121.20 × 828,445.60
  4. Step 4: Simplify right side
    3,072,080.80x = 3,817,577,732,406.72
  5. Step 5: Solve for x
    x = 3,817,577,732,406.72/3,072,080.80
  6. Step 6: Final answer
    x = 1,242,668.40

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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.