Home / 1,628,129.85-2,442,311.42-430,040.22

Finding the Fourth Proportional to 1,628,129.85, 2,442,311.42 and 430,040.22

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Solution

The fourth proportional to 1,628,129.85, 2,442,311.42 and 430,040.22 is: 645,091.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,628,129.85 : 2,442,311.42 = 430,040.22 : x
  2. Step 2: Convert to fraction form
    1,628,129.85/2,442,311.42 = 430,040.22/x
  3. Step 3: Cross multiply
    1,628,129.85x = 2,442,311.42 × 430,040.22
  4. Step 4: Simplify right side
    1,628,129.85x = 1,050,292,140,365.31
  5. Step 5: Solve for x
    x = 1,050,292,140,365.31/1,628,129.85
  6. Step 6: Final answer
    x = 645,091.14

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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.