Home / 727,382.19-1,003,715.37-405,122.22

Finding the Fourth Proportional to 727,382.19, 1,003,715.37 and 405,122.22

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Solution

The fourth proportional to 727,382.19, 1,003,715.37 and 405,122.22 is: 559,028.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,382.19 : 1,003,715.37 = 405,122.22 : x
  2. Step 2: Convert to fraction form
    727,382.19/1,003,715.37 = 405,122.22/x
  3. Step 3: Cross multiply
    727,382.19x = 1,003,715.37 × 405,122.22
  4. Step 4: Simplify right side
    727,382.19x = 406,627,398,942.52
  5. Step 5: Solve for x
    x = 406,627,398,942.52/727,382.19
  6. Step 6: Final answer
    x = 559,028.53

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1.5x scale

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.