Home / 727,605.52-1,004,125.87-405,315.53

Finding the Fourth Proportional to 727,605.52, 1,004,125.87 and 405,315.53

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Solution

The fourth proportional to 727,605.52, 1,004,125.87 and 405,315.53 is: 559,352.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,605.52 : 1,004,125.87 = 405,315.53 : x
  2. Step 2: Convert to fraction form
    727,605.52/1,004,125.87 = 405,315.53/x
  3. Step 3: Cross multiply
    727,605.52x = 1,004,125.87 × 405,315.53
  4. Step 4: Simplify right side
    727,605.52x = 406,987,809,185.76
  5. Step 5: Solve for x
    x = 406,987,809,185.76/727,605.52
  6. Step 6: Final answer
    x = 559,352.28

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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.