Home / 3,115,489.40-4,673,234.10-1,913,514.20

Finding the Fourth Proportional to 3,115,489.40, 4,673,234.10 and 1,913,514.20

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Solution

The fourth proportional to 3,115,489.40, 4,673,234.10 and 1,913,514.20 is: 2,870,271.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115,489.40 : 4,673,234.10 = 1,913,514.20 : x
  2. Step 2: Convert to fraction form
    3,115,489.40/4,673,234.10 = 1,913,514.20/x
  3. Step 3: Cross multiply
    3,115,489.40x = 4,673,234.10 × 1,913,514.20
  4. Step 4: Simplify right side
    3,115,489.40x = 8,942,299,810,274.22
  5. Step 5: Solve for x
    x = 8,942,299,810,274.22/3,115,489.40
  6. Step 6: Final answer
    x = 2,870,271.30

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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.