Home / 1,345,816.60-1,857,268.38-772,971.64

Finding the Fourth Proportional to 1,345,816.60, 1,857,268.38 and 772,971.64

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Solution

The fourth proportional to 1,345,816.60, 1,857,268.38 and 772,971.64 is: 1,066,724.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,816.60 : 1,857,268.38 = 772,971.64 : x
  2. Step 2: Convert to fraction form
    1,345,816.60/1,857,268.38 = 772,971.64/x
  3. Step 3: Cross multiply
    1,345,816.60x = 1,857,268.38 × 772,971.64
  4. Step 4: Simplify right side
    1,345,816.60x = 1,435,615,785,608.74
  5. Step 5: Solve for x
    x = 1,435,615,785,608.74/1,345,816.60
  6. Step 6: Final answer
    x = 1,066,724.68

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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.