Home / 1,821,087.20-2,731,630.80-1,223,890.40

Finding the Fourth Proportional to 1,821,087.20, 2,731,630.80 and 1,223,890.40

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Solution

The fourth proportional to 1,821,087.20, 2,731,630.80 and 1,223,890.40 is: 1,835,835.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821,087.20 : 2,731,630.80 = 1,223,890.40 : x
  2. Step 2: Convert to fraction form
    1,821,087.20/2,731,630.80 = 1,223,890.40/x
  3. Step 3: Cross multiply
    1,821,087.20x = 2,731,630.80 × 1,223,890.40
  4. Step 4: Simplify right side
    1,821,087.20x = 3,343,216,712,464.32
  5. Step 5: Solve for x
    x = 3,343,216,712,464.32/1,821,087.20
  6. Step 6: Final answer
    x = 1,835,835.60

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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.