Home / 1,313,145.90-1,969,718.85-1,124,189.10

Finding the Fourth Proportional to 1,313,145.90, 1,969,718.85 and 1,124,189.10

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Solution

The fourth proportional to 1,313,145.90, 1,969,718.85 and 1,124,189.10 is: 1,686,283.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,145.90 : 1,969,718.85 = 1,124,189.10 : x
  2. Step 2: Convert to fraction form
    1,313,145.90/1,969,718.85 = 1,124,189.10/x
  3. Step 3: Cross multiply
    1,313,145.90x = 1,969,718.85 × 1,124,189.10
  4. Step 4: Simplify right side
    1,313,145.90x = 2,214,336,461,234.54
  5. Step 5: Solve for x
    x = 2,214,336,461,234.54/1,313,145.90
  6. Step 6: Final answer
    x = 1,686,283.65

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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.