Home / 1,855,627.18-2,778,715.63-1,222,621.90

Finding the Fourth Proportional to 1,855,627.18, 2,778,715.63 and 1,222,621.90

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Solution

The fourth proportional to 1,855,627.18, 2,778,715.63 and 1,222,621.90 is: 1,830,819.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,855,627.18 : 2,778,715.63 = 1,222,621.90 : x
  2. Step 2: Convert to fraction form
    1,855,627.18/2,778,715.63 = 1,222,621.90/x
  3. Step 3: Cross multiply
    1,855,627.18x = 2,778,715.63 × 1,222,621.90
  4. Step 4: Simplify right side
    1,855,627.18x = 3,397,318,577,691.79
  5. Step 5: Solve for x
    x = 3,397,318,577,691.79/1,855,627.18
  6. Step 6: Final answer
    x = 1,830,819.58

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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.