Home / 1,308,349.85-1,805,258.18-764,380.55

Finding the Fourth Proportional to 1,308,349.85, 1,805,258.18 and 764,380.55

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Solution

The fourth proportional to 1,308,349.85, 1,805,258.18 and 764,380.55 is: 1,054,690.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,349.85 : 1,805,258.18 = 764,380.55 : x
  2. Step 2: Convert to fraction form
    1,308,349.85/1,805,258.18 = 764,380.55/x
  3. Step 3: Cross multiply
    1,308,349.85x = 1,805,258.18 × 764,380.55
  4. Step 4: Simplify right side
    1,308,349.85x = 1,379,904,227,672.21
  5. Step 5: Solve for x
    x = 1,379,904,227,672.21/1,308,349.85
  6. Step 6: Final answer
    x = 1,054,690.56

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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.