Home / 1,098,023.40-1,647,035.10-678,119.40

Finding the Fourth Proportional to 1,098,023.40, 1,647,035.10 and 678,119.40

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Solution

The fourth proportional to 1,098,023.40, 1,647,035.10 and 678,119.40 is: 1,017,179.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,023.40 : 1,647,035.10 = 678,119.40 : x
  2. Step 2: Convert to fraction form
    1,098,023.40/1,647,035.10 = 678,119.40/x
  3. Step 3: Cross multiply
    1,098,023.40x = 1,647,035.10 × 678,119.40
  4. Step 4: Simplify right side
    1,098,023.40x = 1,116,886,453,790.94
  5. Step 5: Solve for x
    x = 1,116,886,453,790.94/1,098,023.40
  6. Step 6: Final answer
    x = 1,017,179.10

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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.