Home / 1,821,120.50-2,513,080.43-1,005,306.67

Finding the Fourth Proportional to 1,821,120.50, 2,513,080.43 and 1,005,306.67

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Solution

The fourth proportional to 1,821,120.50, 2,513,080.43 and 1,005,306.67 is: 1,387,286.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821,120.50 : 2,513,080.43 = 1,005,306.67 : x
  2. Step 2: Convert to fraction form
    1,821,120.50/2,513,080.43 = 1,005,306.67/x
  3. Step 3: Cross multiply
    1,821,120.50x = 2,513,080.43 × 1,005,306.67
  4. Step 4: Simplify right side
    1,821,120.50x = 2,526,416,518,525.47
  5. Step 5: Solve for x
    x = 2,526,416,518,525.47/1,821,120.50
  6. Step 6: Final answer
    x = 1,387,286.85

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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.