Home / 1,230,172.80-1,844,913.60-388,982.40

Finding the Fourth Proportional to 1,230,172.80, 1,844,913.60 and 388,982.40

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Solution

The fourth proportional to 1,230,172.80, 1,844,913.60 and 388,982.40 is: 583,364.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,172.80 : 1,844,913.60 = 388,982.40 : x
  2. Step 2: Convert to fraction form
    1,230,172.80/1,844,913.60 = 388,982.40/x
  3. Step 3: Cross multiply
    1,230,172.80x = 1,844,913.60 × 388,982.40
  4. Step 4: Simplify right side
    1,230,172.80x = 717,638,919,920.64
  5. Step 5: Solve for x
    x = 717,638,919,920.64/1,230,172.80
  6. Step 6: Final answer
    x = 583,364.32

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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.