Home / 1,102,105.20-1,650,004.20-678,529.20

Finding the Fourth Proportional to 1,102,105.20, 1,650,004.20 and 678,529.20

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Solution

The fourth proportional to 1,102,105.20, 1,650,004.20 and 678,529.20 is: 1,015,852.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102,105.20 : 1,650,004.20 = 678,529.20 : x
  2. Step 2: Convert to fraction form
    1,102,105.20/1,650,004.20 = 678,529.20/x
  3. Step 3: Cross multiply
    1,102,105.20x = 1,650,004.20 × 678,529.20
  4. Step 4: Simplify right side
    1,102,105.20x = 1,119,576,029,822.64
  5. Step 5: Solve for x
    x = 1,119,576,029,822.64/1,102,105.20
  6. Step 6: Final answer
    x = 1,015,852.23

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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.