Home / 2,678,689.64-4,020,680.74-1,400,563.10

Finding the Fourth Proportional to 2,678,689.64, 4,020,680.74 and 1,400,563.10

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Solution

The fourth proportional to 2,678,689.64, 4,020,680.74 and 1,400,563.10 is: 2,102,228.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,678,689.64 : 4,020,680.74 = 1,400,563.10 : x
  2. Step 2: Convert to fraction form
    2,678,689.64/4,020,680.74 = 1,400,563.10/x
  3. Step 3: Cross multiply
    2,678,689.64x = 4,020,680.74 × 1,400,563.10
  4. Step 4: Simplify right side
    2,678,689.64x = 5,631,217,081,324.69
  5. Step 5: Solve for x
    x = 5,631,217,081,324.69/2,678,689.64
  6. Step 6: Final answer
    x = 2,102,228.27

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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.