Home / 1,188,860.12-1,640,626.98-679,573.56

Finding the Fourth Proportional to 1,188,860.12, 1,640,626.98 and 679,573.56

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Solution

The fourth proportional to 1,188,860.12, 1,640,626.98 and 679,573.56 is: 937,811.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,860.12 : 1,640,626.98 = 679,573.56 : x
  2. Step 2: Convert to fraction form
    1,188,860.12/1,640,626.98 = 679,573.56/x
  3. Step 3: Cross multiply
    1,188,860.12x = 1,640,626.98 × 679,573.56
  4. Step 4: Simplify right side
    1,188,860.12x = 1,114,926,717,430.65
  5. Step 5: Solve for x
    x = 1,114,926,717,430.65/1,188,860.12
  6. Step 6: Final answer
    x = 937,811.52

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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.