Home / 1,230,406.86-1,698,078.78-746,861.16

Finding the Fourth Proportional to 1,230,406.86, 1,698,078.78 and 746,861.16

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Solution

The fourth proportional to 1,230,406.86, 1,698,078.78 and 746,861.16 is: 1,030,739.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,406.86 : 1,698,078.78 = 746,861.16 : x
  2. Step 2: Convert to fraction form
    1,230,406.86/1,698,078.78 = 746,861.16/x
  3. Step 3: Cross multiply
    1,230,406.86x = 1,698,078.78 × 746,861.16
  4. Step 4: Simplify right side
    1,230,406.86x = 1,268,229,087,402.18
  5. Step 5: Solve for x
    x = 1,268,229,087,402.18/1,230,406.86
  6. Step 6: Final answer
    x = 1,030,739.61

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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.