Home / 2,660,758.60-3,990,263.10-977,643.40

Finding the Fourth Proportional to 2,660,758.60, 3,990,263.10 and 977,643.40

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Solution

The fourth proportional to 2,660,758.60, 3,990,263.10 and 977,643.40 is: 1,466,143.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,660,758.60 : 3,990,263.10 = 977,643.40 : x
  2. Step 2: Convert to fraction form
    2,660,758.60/3,990,263.10 = 977,643.40/x
  3. Step 3: Cross multiply
    2,660,758.60x = 3,990,263.10 × 977,643.40
  4. Step 4: Simplify right side
    2,660,758.60x = 3,901,054,383,978.54
  5. Step 5: Solve for x
    x = 3,901,054,383,978.54/2,660,758.60
  6. Step 6: Final answer
    x = 1,466,143.67

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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.