Home / 1,340,109.46-1,849,369.07-728,274.34

Finding the Fourth Proportional to 1,340,109.46, 1,849,369.07 and 728,274.34

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Solution

The fourth proportional to 1,340,109.46, 1,849,369.07 and 728,274.34 is: 1,005,028.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,109.46 : 1,849,369.07 = 728,274.34 : x
  2. Step 2: Convert to fraction form
    1,340,109.46/1,849,369.07 = 728,274.34/x
  3. Step 3: Cross multiply
    1,340,109.46x = 1,849,369.07 × 728,274.34
  4. Step 4: Simplify right side
    1,340,109.46x = 1,346,848,038,870.66
  5. Step 5: Solve for x
    x = 1,346,848,038,870.66/1,340,109.46
  6. Step 6: Final answer
    x = 1,005,028.38

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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.