Home / 1,098,626.40-1,647,285.12-340,243.20

Finding the Fourth Proportional to 1,098,626.40, 1,647,285.12 and 340,243.20

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Solution

The fourth proportional to 1,098,626.40, 1,647,285.12 and 340,243.20 is: 510,162.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,626.40 : 1,647,285.12 = 340,243.20 : x
  2. Step 2: Convert to fraction form
    1,098,626.40/1,647,285.12 = 340,243.20/x
  3. Step 3: Cross multiply
    1,098,626.40x = 1,647,285.12 × 340,243.20
  4. Step 4: Simplify right side
    1,098,626.40x = 560,477,560,541.18
  5. Step 5: Solve for x
    x = 560,477,560,541.18/1,098,626.40
  6. Step 6: Final answer
    x = 510,162.11

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Double scale
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1.5x scale

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.