Home / 727,854.09-1,004,425.07-405,557.25

Finding the Fourth Proportional to 727,854.09, 1,004,425.07 and 405,557.25

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Solution

The fourth proportional to 727,854.09, 1,004,425.07 and 405,557.25 is: 559,661.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,854.09 : 1,004,425.07 = 405,557.25 : x
  2. Step 2: Convert to fraction form
    727,854.09/1,004,425.07 = 405,557.25/x
  3. Step 3: Cross multiply
    727,854.09x = 1,004,425.07 × 405,557.25
  4. Step 4: Simplify right side
    727,854.09x = 407,351,869,220.26
  5. Step 5: Solve for x
    x = 407,351,869,220.26/727,854.09
  6. Step 6: Final answer
    x = 559,661.44

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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.