Home / 2,105,424.63-2,905,487.21-1,138,554.86

Finding the Fourth Proportional to 2,105,424.63, 2,905,487.21 and 1,138,554.86

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Solution

The fourth proportional to 2,105,424.63, 2,905,487.21 and 1,138,554.86 is: 1,571,206.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,105,424.63 : 2,905,487.21 = 1,138,554.86 : x
  2. Step 2: Convert to fraction form
    2,105,424.63/2,905,487.21 = 1,138,554.86/x
  3. Step 3: Cross multiply
    2,105,424.63x = 2,905,487.21 × 1,138,554.86
  4. Step 4: Simplify right side
    2,105,424.63x = 3,308,056,571,932.29
  5. Step 5: Solve for x
    x = 3,308,056,571,932.29/2,105,424.63
  6. Step 6: Final answer
    x = 1,571,206.36

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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.