Home / 810,676.35-1,216,014.12-211,632.35

Finding the Fourth Proportional to 810,676.35, 1,216,014.12 and 211,632.35

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Solution

The fourth proportional to 810,676.35, 1,216,014.12 and 211,632.35 is: 317,448.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,676.35 : 1,216,014.12 = 211,632.35 : x
  2. Step 2: Convert to fraction form
    810,676.35/1,216,014.12 = 211,632.35/x
  3. Step 3: Cross multiply
    810,676.35x = 1,216,014.12 × 211,632.35
  4. Step 4: Simplify right side
    810,676.35x = 257,347,919,768.71
  5. Step 5: Solve for x
    x = 257,347,919,768.71/810,676.35
  6. Step 6: Final answer
    x = 317,448.41

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Double scale
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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.