Home / 853,670.80-1,280,506.20-455,090.05

Finding the Fourth Proportional to 853,670.80, 1,280,506.20 and 455,090.05

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Solution

The fourth proportional to 853,670.80, 1,280,506.20 and 455,090.05 is: 682,635.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,670.80 : 1,280,506.20 = 455,090.05 : x
  2. Step 2: Convert to fraction form
    853,670.80/1,280,506.20 = 455,090.05/x
  3. Step 3: Cross multiply
    853,670.80x = 1,280,506.20 × 455,090.05
  4. Step 4: Simplify right side
    853,670.80x = 582,745,630,583.31
  5. Step 5: Solve for x
    x = 582,745,630,583.31/853,670.80
  6. Step 6: Final answer
    x = 682,635.08

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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.