Home / 1,189,077.12-1,783,610.81-430,741.02

Finding the Fourth Proportional to 1,189,077.12, 1,783,610.81 and 430,741.02

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Solution

The fourth proportional to 1,189,077.12, 1,783,610.81 and 430,741.02 is: 646,109.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,077.12 : 1,783,610.81 = 430,741.02 : x
  2. Step 2: Convert to fraction form
    1,189,077.12/1,783,610.81 = 430,741.02/x
  3. Step 3: Cross multiply
    1,189,077.12x = 1,783,610.81 × 430,741.02
  4. Step 4: Simplify right side
    1,189,077.12x = 768,274,337,428.72
  5. Step 5: Solve for x
    x = 768,274,337,428.72/1,189,077.12
  6. Step 6: Final answer
    x = 646,109.76

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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.