Home / 1,308,724.80-1,806,009.12-856,006.08

Finding the Fourth Proportional to 1,308,724.80, 1,806,009.12 and 856,006.08

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Solution

The fourth proportional to 1,308,724.80, 1,806,009.12 and 856,006.08 is: 1,181,268.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,724.80 : 1,806,009.12 = 856,006.08 : x
  2. Step 2: Convert to fraction form
    1,308,724.80/1,806,009.12 = 856,006.08/x
  3. Step 3: Cross multiply
    1,308,724.80x = 1,806,009.12 × 856,006.08
  4. Step 4: Simplify right side
    1,308,724.80x = 1,545,954,787,255.45
  5. Step 5: Solve for x
    x = 1,545,954,787,255.45/1,308,724.80
  6. Step 6: Final answer
    x = 1,181,268.05

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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.