Home / 724,231.05-1,085,417.10-404,382.30

Finding the Fourth Proportional to 724,231.05, 1,085,417.10 and 404,382.30

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Solution

The fourth proportional to 724,231.05, 1,085,417.10 and 404,382.30 is: 606,054.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,231.05 : 1,085,417.10 = 404,382.30 : x
  2. Step 2: Convert to fraction form
    724,231.05/1,085,417.10 = 404,382.30/x
  3. Step 3: Cross multiply
    724,231.05x = 1,085,417.10 × 404,382.30
  4. Step 4: Simplify right side
    724,231.05x = 438,923,463,357.33
  5. Step 5: Solve for x
    x = 438,923,463,357.33/724,231.05
  6. Step 6: Final answer
    x = 606,054.47

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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.