Home / 1,296,485.83-1,789,179.08-715,707.58

Finding the Fourth Proportional to 1,296,485.83, 1,789,179.08 and 715,707.58

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Solution

The fourth proportional to 1,296,485.83, 1,789,179.08 and 715,707.58 is: 987,692.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,485.83 : 1,789,179.08 = 715,707.58 : x
  2. Step 2: Convert to fraction form
    1,296,485.83/1,789,179.08 = 715,707.58/x
  3. Step 3: Cross multiply
    1,296,485.83x = 1,789,179.08 × 715,707.58
  4. Step 4: Simplify right side
    1,296,485.83x = 1,280,529,029,533.43
  5. Step 5: Solve for x
    x = 1,280,529,029,533.43/1,296,485.83
  6. Step 6: Final answer
    x = 987,692.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.