Home / 1,151,928.30-1,589,661.74-642,630.68

Finding the Fourth Proportional to 1,151,928.30, 1,589,661.74 and 642,630.68

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Solution

The fourth proportional to 1,151,928.30, 1,589,661.74 and 642,630.68 is: 886,830.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,151,928.30 : 1,589,661.74 = 642,630.68 : x
  2. Step 2: Convert to fraction form
    1,151,928.30/1,589,661.74 = 642,630.68/x
  3. Step 3: Cross multiply
    1,151,928.30x = 1,589,661.74 × 642,630.68
  4. Step 4: Simplify right side
    1,151,928.30x = 1,021,565,407,260.92
  5. Step 5: Solve for x
    x = 1,021,565,407,260.92/1,151,928.30
  6. Step 6: Final answer
    x = 886,830.72

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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.