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Finding the Fourth Proportional to 943,362.40, 1,414,978.80 and 303,656.80

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Solution

The fourth proportional to 943,362.40, 1,414,978.80 and 303,656.80 is: 455,464.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    943,362.40 : 1,414,978.80 = 303,656.80 : x
  2. Step 2: Convert to fraction form
    943,362.40/1,414,978.80 = 303,656.80/x
  3. Step 3: Cross multiply
    943,362.40x = 1,414,978.80 × 303,656.80
  4. Step 4: Simplify right side
    943,362.40x = 429,667,934,475.84
  5. Step 5: Solve for x
    x = 429,667,934,475.84/943,362.40
  6. Step 6: Final answer
    x = 455,464.34

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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.