Home / 1,781,168.70-2,667,816.45-715,662.30

Finding the Fourth Proportional to 1,781,168.70, 2,667,816.45 and 715,662.30

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Solution

The fourth proportional to 1,781,168.70, 2,667,816.45 and 715,662.30 is: 1,071,911.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,781,168.70 : 2,667,816.45 = 715,662.30 : x
  2. Step 2: Convert to fraction form
    1,781,168.70/2,667,816.45 = 715,662.30/x
  3. Step 3: Cross multiply
    1,781,168.70x = 2,667,816.45 × 715,662.30
  4. Step 4: Simplify right side
    1,781,168.70x = 1,909,255,656,584.84
  5. Step 5: Solve for x
    x = 1,909,255,656,584.84/1,781,168.70
  6. Step 6: Final answer
    x = 1,071,911.75

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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.