Home / 2,230,423.74-3,077,946.81-1,211,821.20

Finding the Fourth Proportional to 2,230,423.74, 3,077,946.81 and 1,211,821.20

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Solution

The fourth proportional to 2,230,423.74, 3,077,946.81 and 1,211,821.20 is: 1,672,292.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,230,423.74 : 3,077,946.81 = 1,211,821.20 : x
  2. Step 2: Convert to fraction form
    2,230,423.74/3,077,946.81 = 1,211,821.20/x
  3. Step 3: Cross multiply
    2,230,423.74x = 3,077,946.81 × 1,211,821.20
  4. Step 4: Simplify right side
    2,230,423.74x = 3,729,921,196,830.37
  5. Step 5: Solve for x
    x = 3,729,921,196,830.37/2,230,423.74
  6. Step 6: Final answer
    x = 1,672,292.64

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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.