Home / 727,969.86-1,004,599.36-405,672.88

Finding the Fourth Proportional to 727,969.86, 1,004,599.36 and 405,672.88

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Solution

The fourth proportional to 727,969.86, 1,004,599.36 and 405,672.88 is: 559,829.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,969.86 : 1,004,599.36 = 405,672.88 : x
  2. Step 2: Convert to fraction form
    727,969.86/1,004,599.36 = 405,672.88/x
  3. Step 3: Cross multiply
    727,969.86x = 1,004,599.36 × 405,672.88
  4. Step 4: Simplify right side
    727,969.86x = 407,538,715,617.36
  5. Step 5: Solve for x
    x = 407,538,715,617.36/727,969.86
  6. Step 6: Final answer
    x = 559,829.11

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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.