Home / 1,428,485.06-1,971,324.25-783,947.00

Finding the Fourth Proportional to 1,428,485.06, 1,971,324.25 and 783,947.00

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Solution

The fourth proportional to 1,428,485.06, 1,971,324.25 and 783,947.00 is: 1,081,855.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,485.06 : 1,971,324.25 = 783,947.00 : x
  2. Step 2: Convert to fraction form
    1,428,485.06/1,971,324.25 = 783,947.00/x
  3. Step 3: Cross multiply
    1,428,485.06x = 1,971,324.25 × 783,947.00
  4. Step 4: Simplify right side
    1,428,485.06x = 1,545,413,719,998.26
  5. Step 5: Solve for x
    x = 1,545,413,719,998.26/1,428,485.06
  6. Step 6: Final answer
    x = 1,081,855.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.