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Finding the Fourth Proportional to 788,901.12, 1,183,662.72 and 290,304

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Solution

The fourth proportional to 788,901.12, 1,183,662.72 and 290,304 is: 435,570.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,901.12 : 1,183,662.72 = 290,304 : x
  2. Step 2: Convert to fraction form
    788,901.12/1,183,662.72 = 290,304/x
  3. Step 3: Cross multiply
    788,901.12x = 1,183,662.72 × 290,304
  4. Step 4: Simplify right side
    788,901.12x = 343,622,022,266.88
  5. Step 5: Solve for x
    x = 343,622,022,266.88/788,901.12
  6. Step 6: Final answer
    x = 435,570.46

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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.