Home / 1,106,709.80-1,660,064.70-1,098,415.40

Finding the Fourth Proportional to 1,106,709.80, 1,660,064.70 and 1,098,415.40

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Solution

The fourth proportional to 1,106,709.80, 1,660,064.70 and 1,098,415.40 is: 1,647,623.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,106,709.80 : 1,660,064.70 = 1,098,415.40 : x
  2. Step 2: Convert to fraction form
    1,106,709.80/1,660,064.70 = 1,098,415.40/x
  3. Step 3: Cross multiply
    1,106,709.80x = 1,660,064.70 × 1,098,415.40
  4. Step 4: Simplify right side
    1,106,709.80x = 1,823,440,631,476.38
  5. Step 5: Solve for x
    x = 1,823,440,631,476.38/1,106,709.80
  6. Step 6: Final answer
    x = 1,647,623.10

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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.