Home / 1,107,970.65-1,660,971.83-729,072.90

Finding the Fourth Proportional to 1,107,970.65, 1,660,971.83 and 729,072.90

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Solution

The fourth proportional to 1,107,970.65, 1,660,971.83 and 729,072.90 is: 1,092,961.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,970.65 : 1,660,971.83 = 729,072.90 : x
  2. Step 2: Convert to fraction form
    1,107,970.65/1,660,971.83 = 729,072.90/x
  3. Step 3: Cross multiply
    1,107,970.65x = 1,660,971.83 × 729,072.90
  4. Step 4: Simplify right side
    1,107,970.65x = 1,210,969,545,271.04
  5. Step 5: Solve for x
    x = 1,210,969,545,271.04/1,107,970.65
  6. Step 6: Final answer
    x = 1,092,961.75

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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.