Home / 511,438.32-705,790.40-281,996.04

Finding the Fourth Proportional to 511,438.32, 705,790.40 and 281,996.04

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Solution

The fourth proportional to 511,438.32, 705,790.40 and 281,996.04 is: 389,157.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,438.32 : 705,790.40 = 281,996.04 : x
  2. Step 2: Convert to fraction form
    511,438.32/705,790.40 = 281,996.04/x
  3. Step 3: Cross multiply
    511,438.32x = 705,790.40 × 281,996.04
  4. Step 4: Simplify right side
    511,438.32x = 199,030,097,870.02
  5. Step 5: Solve for x
    x = 199,030,097,870.02/511,438.32
  6. Step 6: Final answer
    x = 389,157.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.