Home / 1,318,799.10-1,978,176.84-420,228.63

Finding the Fourth Proportional to 1,318,799.10, 1,978,176.84 and 420,228.63

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Solution

The fourth proportional to 1,318,799.10, 1,978,176.84 and 420,228.63 is: 630,336.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,799.10 : 1,978,176.84 = 420,228.63 : x
  2. Step 2: Convert to fraction form
    1,318,799.10/1,978,176.84 = 420,228.63/x
  3. Step 3: Cross multiply
    1,318,799.10x = 1,978,176.84 × 420,228.63
  4. Step 4: Simplify right side
    1,318,799.10x = 831,286,543,370.93
  5. Step 5: Solve for x
    x = 831,286,543,370.93/1,318,799.10
  6. Step 6: Final answer
    x = 630,336.00

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.