Home / 672,154.40-1,008,231.60-317,860.40

Finding the Fourth Proportional to 672,154.40, 1,008,231.60 and 317,860.40

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Solution

The fourth proportional to 672,154.40, 1,008,231.60 and 317,860.40 is: 476,790.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,154.40 : 1,008,231.60 = 317,860.40 : x
  2. Step 2: Convert to fraction form
    672,154.40/1,008,231.60 = 317,860.40/x
  3. Step 3: Cross multiply
    672,154.40x = 1,008,231.60 × 317,860.40
  4. Step 4: Simplify right side
    672,154.40x = 320,476,899,668.64
  5. Step 5: Solve for x
    x = 320,476,899,668.64/672,154.40
  6. Step 6: Final answer
    x = 476,790.60

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Double scale
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Similar ratio
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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.