Home / 2,257,186.10-3,114,818.28-1,290,378.67

Finding the Fourth Proportional to 2,257,186.10, 3,114,818.28 and 1,290,378.67

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Solution

The fourth proportional to 2,257,186.10, 3,114,818.28 and 1,290,378.67 is: 1,780,666.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,257,186.10 : 3,114,818.28 = 1,290,378.67 : x
  2. Step 2: Convert to fraction form
    2,257,186.10/3,114,818.28 = 1,290,378.67/x
  3. Step 3: Cross multiply
    2,257,186.10x = 3,114,818.28 × 1,290,378.67
  4. Step 4: Simplify right side
    2,257,186.10x = 4,019,295,061,651.04
  5. Step 5: Solve for x
    x = 4,019,295,061,651.04/2,257,186.10
  6. Step 6: Final answer
    x = 1,780,666.23

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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.