Home / 1,876,821-2,810,685.29-1,298,824.67

Finding the Fourth Proportional to 1,876,821, 2,810,685.29 and 1,298,824.67

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Solution

The fourth proportional to 1,876,821, 2,810,685.29 and 1,298,824.67 is: 1,945,090.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,876,821 : 2,810,685.29 = 1,298,824.67 : x
  2. Step 2: Convert to fraction form
    1,876,821/2,810,685.29 = 1,298,824.67/x
  3. Step 3: Cross multiply
    1,876,821x = 2,810,685.29 × 1,298,824.67
  4. Step 4: Simplify right side
    1,876,821x = 3,650,587,387,763.98
  5. Step 5: Solve for x
    x = 3,650,587,387,763.98/1,876,821
  6. Step 6: Final answer
    x = 1,945,090.87

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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.