Home / 1,208,165.39-1,667,274.45-664,336.25

Finding the Fourth Proportional to 1,208,165.39, 1,667,274.45 and 664,336.25

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Solution

The fourth proportional to 1,208,165.39, 1,667,274.45 and 664,336.25 is: 916,787.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,165.39 : 1,667,274.45 = 664,336.25 : x
  2. Step 2: Convert to fraction form
    1,208,165.39/1,667,274.45 = 664,336.25/x
  3. Step 3: Cross multiply
    1,208,165.39x = 1,667,274.45 × 664,336.25
  4. Step 4: Simplify right side
    1,208,165.39x = 1,107,630,855,833.81
  5. Step 5: Solve for x
    x = 1,107,630,855,833.81/1,208,165.39
  6. Step 6: Final answer
    x = 916,787.44

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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.