Home / 853,698.96-1,280,373.48-313,769.16

Finding the Fourth Proportional to 853,698.96, 1,280,373.48 and 313,769.16

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Solution

The fourth proportional to 853,698.96, 1,280,373.48 and 313,769.16 is: 470,589.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,698.96 : 1,280,373.48 = 313,769.16 : x
  2. Step 2: Convert to fraction form
    853,698.96/1,280,373.48 = 313,769.16/x
  3. Step 3: Cross multiply
    853,698.96x = 1,280,373.48 × 313,769.16
  4. Step 4: Simplify right side
    853,698.96x = 401,741,711,305.88
  5. Step 5: Solve for x
    x = 401,741,711,305.88/853,698.96
  6. Step 6: Final answer
    x = 470,589.44

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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.