Home / 879,186.60-1,318,779.90-214,338.60

Finding the Fourth Proportional to 879,186.60, 1,318,779.90 and 214,338.60

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Solution

The fourth proportional to 879,186.60, 1,318,779.90 and 214,338.60 is: 321,507.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,186.60 : 1,318,779.90 = 214,338.60 : x
  2. Step 2: Convert to fraction form
    879,186.60/1,318,779.90 = 214,338.60/x
  3. Step 3: Cross multiply
    879,186.60x = 1,318,779.90 × 214,338.60
  4. Step 4: Simplify right side
    879,186.60x = 282,665,437,474.14
  5. Step 5: Solve for x
    x = 282,665,437,474.14/879,186.60
  6. Step 6: Final answer
    x = 321,507.90

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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.