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Finding the Fourth Proportional to 1,185,580, 1,636,100.48 and 649,036

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Solution

The fourth proportional to 1,185,580, 1,636,100.48 and 649,036 is: 895,669.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,580 : 1,636,100.48 = 649,036 : x
  2. Step 2: Convert to fraction form
    1,185,580/1,636,100.48 = 649,036/x
  3. Step 3: Cross multiply
    1,185,580x = 1,636,100.48 × 649,036
  4. Step 4: Simplify right side
    1,185,580x = 1,061,888,111,137.28
  5. Step 5: Solve for x
    x = 1,061,888,111,137.28/1,185,580
  6. Step 6: Final answer
    x = 895,669.72

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.