Home / 805,380.39-1,111,358.77-474,183.67

Finding the Fourth Proportional to 805,380.39, 1,111,358.77 and 474,183.67

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Solution

The fourth proportional to 805,380.39, 1,111,358.77 and 474,183.67 is: 654,334.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,380.39 : 1,111,358.77 = 474,183.67 : x
  2. Step 2: Convert to fraction form
    805,380.39/1,111,358.77 = 474,183.67/x
  3. Step 3: Cross multiply
    805,380.39x = 1,111,358.77 × 474,183.67
  4. Step 4: Simplify right side
    805,380.39x = 526,988,180,245.29
  5. Step 5: Solve for x
    x = 526,988,180,245.29/805,380.39
  6. Step 6: Final answer
    x = 654,334.51

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.