Home / 1,647,564.60-2,471,845.86-688,485.72

Finding the Fourth Proportional to 1,647,564.60, 2,471,845.86 and 688,485.72

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Solution

The fourth proportional to 1,647,564.60, 2,471,845.86 and 688,485.72 is: 1,032,937.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,647,564.60 : 2,471,845.86 = 688,485.72 : x
  2. Step 2: Convert to fraction form
    1,647,564.60/2,471,845.86 = 688,485.72/x
  3. Step 3: Cross multiply
    1,647,564.60x = 2,471,845.86 × 688,485.72
  4. Step 4: Simplify right side
    1,647,564.60x = 1,701,830,576,651.12
  5. Step 5: Solve for x
    x = 1,701,830,576,651.12/1,647,564.60
  6. Step 6: Final answer
    x = 1,032,937.09

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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.