Home / 1,620,128.41-2,430,183.84-660,580.30

Finding the Fourth Proportional to 1,620,128.41, 2,430,183.84 and 660,580.30

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Solution

The fourth proportional to 1,620,128.41, 2,430,183.84 and 660,580.30 is: 990,866.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620,128.41 : 2,430,183.84 = 660,580.30 : x
  2. Step 2: Convert to fraction form
    1,620,128.41/2,430,183.84 = 660,580.30/x
  3. Step 3: Cross multiply
    1,620,128.41x = 2,430,183.84 × 660,580.30
  4. Step 4: Simplify right side
    1,620,128.41x = 1,605,331,570,642.91
  5. Step 5: Solve for x
    x = 1,605,331,570,642.91/1,620,128.41
  6. Step 6: Final answer
    x = 990,866.87

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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.