Home / 2,106,225-2,905,409.52-1,290,823.92

Finding the Fourth Proportional to 2,106,225, 2,905,409.52 and 1,290,823.92

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Solution

The fourth proportional to 2,106,225, 2,905,409.52 and 1,290,823.92 is: 1,780,613.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,106,225 : 2,905,409.52 = 1,290,823.92 : x
  2. Step 2: Convert to fraction form
    2,106,225/2,905,409.52 = 1,290,823.92/x
  3. Step 3: Cross multiply
    2,106,225x = 2,905,409.52 × 1,290,823.92
  4. Step 4: Simplify right side
    2,106,225x = 3,750,372,105,811.72
  5. Step 5: Solve for x
    x = 3,750,372,105,811.72/2,106,225
  6. Step 6: Final answer
    x = 1,780,613.23

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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.