Home / 1,214,210.20-1,821,315.30-372,760.60

Finding the Fourth Proportional to 1,214,210.20, 1,821,315.30 and 372,760.60

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Solution

The fourth proportional to 1,214,210.20, 1,821,315.30 and 372,760.60 is: 559,140.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,210.20 : 1,821,315.30 = 372,760.60 : x
  2. Step 2: Convert to fraction form
    1,214,210.20/1,821,315.30 = 372,760.60/x
  3. Step 3: Cross multiply
    1,214,210.20x = 1,821,315.30 × 372,760.60
  4. Step 4: Simplify right side
    1,214,210.20x = 678,914,584,017.18
  5. Step 5: Solve for x
    x = 678,914,584,017.18/1,214,210.20
  6. Step 6: Final answer
    x = 559,140.90

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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.