Home / 1,226,029.64-1,691,904.66-689,485.64

Finding the Fourth Proportional to 1,226,029.64, 1,691,904.66 and 689,485.64

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Solution

The fourth proportional to 1,226,029.64, 1,691,904.66 and 689,485.64 is: 951,481.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,029.64 : 1,691,904.66 = 689,485.64 : x
  2. Step 2: Convert to fraction form
    1,226,029.64/1,691,904.66 = 689,485.64/x
  3. Step 3: Cross multiply
    1,226,029.64x = 1,691,904.66 × 689,485.64
  4. Step 4: Simplify right side
    1,226,029.64x = 1,166,543,967,319.08
  5. Step 5: Solve for x
    x = 1,166,543,967,319.08/1,226,029.64
  6. Step 6: Final answer
    x = 951,481.05

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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.