Home / 2,590,000.80-3,885,001.20-1,330,288.80

Finding the Fourth Proportional to 2,590,000.80, 3,885,001.20 and 1,330,288.80

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Solution

The fourth proportional to 2,590,000.80, 3,885,001.20 and 1,330,288.80 is: 1,995,433.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,590,000.80 : 3,885,001.20 = 1,330,288.80 : x
  2. Step 2: Convert to fraction form
    2,590,000.80/3,885,001.20 = 1,330,288.80/x
  3. Step 3: Cross multiply
    2,590,000.80x = 3,885,001.20 × 1,330,288.80
  4. Step 4: Simplify right side
    2,590,000.80x = 5,168,173,584,346.56
  5. Step 5: Solve for x
    x = 5,168,173,584,346.56/2,590,000.80
  6. Step 6: Final answer
    x = 1,995,433.20

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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.