Home / 1,310,728.60-1,808,690.06-729,907.84

Finding the Fourth Proportional to 1,310,728.60, 1,808,690.06 and 729,907.84

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Solution

The fourth proportional to 1,310,728.60, 1,808,690.06 and 729,907.84 is: 1,007,208.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310,728.60 : 1,808,690.06 = 729,907.84 : x
  2. Step 2: Convert to fraction form
    1,310,728.60/1,808,690.06 = 729,907.84/x
  3. Step 3: Cross multiply
    1,310,728.60x = 1,808,690.06 × 729,907.84
  4. Step 4: Simplify right side
    1,310,728.60x = 1,320,177,054,924.07
  5. Step 5: Solve for x
    x = 1,320,177,054,924.07/1,310,728.60
  6. Step 6: Final answer
    x = 1,007,208.55

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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.