Home / 727,579.86-1,004,058.36-405,286.56

Finding the Fourth Proportional to 727,579.86, 1,004,058.36 and 405,286.56

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Solution

The fourth proportional to 727,579.86, 1,004,058.36 and 405,286.56 is: 559,294.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,579.86 : 1,004,058.36 = 405,286.56 : x
  2. Step 2: Convert to fraction form
    727,579.86/1,004,058.36 = 405,286.56/x
  3. Step 3: Cross multiply
    727,579.86x = 1,004,058.36 × 405,286.56
  4. Step 4: Simplify right side
    727,579.86x = 406,931,358,763.64
  5. Step 5: Solve for x
    x = 406,931,358,763.64/727,579.86
  6. Step 6: Final answer
    x = 559,294.42

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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.