Home / 1,116,783.56-1,670,948.05-661,619.18

Finding the Fourth Proportional to 1,116,783.56, 1,670,948.05 and 661,619.18

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Solution

The fourth proportional to 1,116,783.56, 1,670,948.05 and 661,619.18 is: 989,924.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116,783.56 : 1,670,948.05 = 661,619.18 : x
  2. Step 2: Convert to fraction form
    1,116,783.56/1,670,948.05 = 661,619.18/x
  3. Step 3: Cross multiply
    1,116,783.56x = 1,670,948.05 × 661,619.18
  4. Step 4: Simplify right side
    1,116,783.56x = 1,105,531,285,376.58
  5. Step 5: Solve for x
    x = 1,105,531,285,376.58/1,116,783.56
  6. Step 6: Final answer
    x = 989,924.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.