Home / 2,190,180.70-3,022,417.20-1,223,325.10

Finding the Fourth Proportional to 2,190,180.70, 3,022,417.20 and 1,223,325.10

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Solution

The fourth proportional to 2,190,180.70, 3,022,417.20 and 1,223,325.10 is: 1,688,170.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190,180.70 : 3,022,417.20 = 1,223,325.10 : x
  2. Step 2: Convert to fraction form
    2,190,180.70/3,022,417.20 = 1,223,325.10/x
  3. Step 3: Cross multiply
    2,190,180.70x = 3,022,417.20 × 1,223,325.10
  4. Step 4: Simplify right side
    2,190,180.70x = 3,697,398,823,431.72
  5. Step 5: Solve for x
    x = 3,697,398,823,431.72/2,190,180.70
  6. Step 6: Final answer
    x = 1,688,170.67

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1.5x scale

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.