Home / 711,110.40-1,066,665.60-445,171.20

Finding the Fourth Proportional to 711,110.40, 1,066,665.60 and 445,171.20

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Solution

The fourth proportional to 711,110.40, 1,066,665.60 and 445,171.20 is: 667,756.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,110.40 : 1,066,665.60 = 445,171.20 : x
  2. Step 2: Convert to fraction form
    711,110.40/1,066,665.60 = 445,171.20/x
  3. Step 3: Cross multiply
    711,110.40x = 1,066,665.60 × 445,171.20
  4. Step 4: Simplify right side
    711,110.40x = 474,848,805,150.72
  5. Step 5: Solve for x
    x = 474,848,805,150.72/711,110.40
  6. Step 6: Final answer
    x = 667,756.80

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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.