Home / 2,158,441.76-2,978,654.04-1,191,573.38

Finding the Fourth Proportional to 2,158,441.76, 2,978,654.04 and 1,191,573.38

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Solution

The fourth proportional to 2,158,441.76, 2,978,654.04 and 1,191,573.38 is: 1,644,373.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158,441.76 : 2,978,654.04 = 1,191,573.38 : x
  2. Step 2: Convert to fraction form
    2,158,441.76/2,978,654.04 = 1,191,573.38/x
  3. Step 3: Cross multiply
    2,158,441.76x = 2,978,654.04 × 1,191,573.38
  4. Step 4: Simplify right side
    2,158,441.76x = 3,549,284,862,293.46
  5. Step 5: Solve for x
    x = 3,549,284,862,293.46/2,158,441.76
  6. Step 6: Final answer
    x = 1,644,373.70

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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.