Home / 724,924.89-1,088,051.64-388,345.59

Finding the Fourth Proportional to 724,924.89, 1,088,051.64 and 388,345.59

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Solution

The fourth proportional to 724,924.89, 1,088,051.64 and 388,345.59 is: 582,874.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,924.89 : 1,088,051.64 = 388,345.59 : x
  2. Step 2: Convert to fraction form
    724,924.89/1,088,051.64 = 388,345.59/x
  3. Step 3: Cross multiply
    724,924.89x = 1,088,051.64 × 388,345.59
  4. Step 4: Simplify right side
    724,924.89x = 422,540,054,629.97
  5. Step 5: Solve for x
    x = 422,540,054,629.97/724,924.89
  6. Step 6: Final answer
    x = 582,874.25

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Double scale
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1.5x scale

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.