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Finding the Fourth Proportional to 628,993.94, 942,703.32 and 495,346.37

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Solution

The fourth proportional to 628,993.94, 942,703.32 and 495,346.37 is: 742,399.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,993.94 : 942,703.32 = 495,346.37 : x
  2. Step 2: Convert to fraction form
    628,993.94/942,703.32 = 495,346.37/x
  3. Step 3: Cross multiply
    628,993.94x = 942,703.32 × 495,346.37
  4. Step 4: Simplify right side
    628,993.94x = 466,964,667,548.95
  5. Step 5: Solve for x
    x = 466,964,667,548.95/628,993.94
  6. Step 6: Final answer
    x = 742,399.31

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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.