Home / 1,509,018.28-2,082,434.34-829,940.20

Finding the Fourth Proportional to 1,509,018.28, 2,082,434.34 and 829,940.20

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Solution

The fourth proportional to 1,509,018.28, 2,082,434.34 and 829,940.20 is: 1,145,311.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,509,018.28 : 2,082,434.34 = 829,940.20 : x
  2. Step 2: Convert to fraction form
    1,509,018.28/2,082,434.34 = 829,940.20/x
  3. Step 3: Cross multiply
    1,509,018.28x = 2,082,434.34 × 829,940.20
  4. Step 4: Simplify right side
    1,509,018.28x = 1,728,295,972,626.47
  5. Step 5: Solve for x
    x = 1,728,295,972,626.47/1,509,018.28
  6. Step 6: Final answer
    x = 1,145,311.49

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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.