Home / 2,758,345.40-4,128,186.90-2,422,422.20

Finding the Fourth Proportional to 2,758,345.40, 4,128,186.90 and 2,422,422.20

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Solution

The fourth proportional to 2,758,345.40, 4,128,186.90 and 2,422,422.20 is: 3,625,438.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,758,345.40 : 4,128,186.90 = 2,422,422.20 : x
  2. Step 2: Convert to fraction form
    2,758,345.40/4,128,186.90 = 2,422,422.20/x
  3. Step 3: Cross multiply
    2,758,345.40x = 4,128,186.90 × 2,422,422.20
  4. Step 4: Simplify right side
    2,758,345.40x = 10,000,211,592,309.18
  5. Step 5: Solve for x
    x = 10,000,211,592,309.18/2,758,345.40
  6. Step 6: Final answer
    x = 3,625,438.49

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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.