Home / 1,620,940.64-2,431,830.91-862,157.54

Finding the Fourth Proportional to 1,620,940.64, 2,431,830.91 and 862,157.54

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Solution

The fourth proportional to 1,620,940.64, 2,431,830.91 and 862,157.54 is: 1,293,459.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620,940.64 : 2,431,830.91 = 862,157.54 : x
  2. Step 2: Convert to fraction form
    1,620,940.64/2,431,830.91 = 862,157.54/x
  3. Step 3: Cross multiply
    1,620,940.64x = 2,431,830.91 × 862,157.54
  4. Step 4: Simplify right side
    1,620,940.64x = 2,096,621,363,296.53
  5. Step 5: Solve for x
    x = 2,096,621,363,296.53/1,620,940.64
  6. Step 6: Final answer
    x = 1,293,459.69

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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.