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Finding the Fourth Proportional to 704,745.60, 1,054,958.40 and 388,233.60

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Solution

The fourth proportional to 704,745.60, 1,054,958.40 and 388,233.60 is: 581,160.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,745.60 : 1,054,958.40 = 388,233.60 : x
  2. Step 2: Convert to fraction form
    704,745.60/1,054,958.40 = 388,233.60/x
  3. Step 3: Cross multiply
    704,745.60x = 1,054,958.40 × 388,233.60
  4. Step 4: Simplify right side
    704,745.60x = 409,570,297,482.24
  5. Step 5: Solve for x
    x = 409,570,297,482.24/704,745.60
  6. Step 6: Final answer
    x = 581,160.49

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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.