Home / 1,098,858.80-1,648,579.80-388,812.80

Finding the Fourth Proportional to 1,098,858.80, 1,648,579.80 and 388,812.80

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Solution

The fourth proportional to 1,098,858.80, 1,648,579.80 and 388,812.80 is: 583,322.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,858.80 : 1,648,579.80 = 388,812.80 : x
  2. Step 2: Convert to fraction form
    1,098,858.80/1,648,579.80 = 388,812.80/x
  3. Step 3: Cross multiply
    1,098,858.80x = 1,648,579.80 × 388,812.80
  4. Step 4: Simplify right side
    1,098,858.80x = 640,988,928,061.44
  5. Step 5: Solve for x
    x = 640,988,928,061.44/1,098,858.80
  6. Step 6: Final answer
    x = 583,322.38

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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.