Finding the Fourth Proportional to 842,328.60, 1,263,559.14 and 281,365.08
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Solution
The fourth proportional to 842,328.60, 1,263,559.14 and 281,365.08 is: 422,069.75
Step by Step Solution
- Step 1: Write the proportion equation
842,328.60 : 1,263,559.14 = 281,365.08 : x - Step 2: Convert to fraction form
842,328.60/1,263,559.14 = 281,365.08/x - Step 3: Cross multiply
842,328.60x = 1,263,559.14 × 281,365.08 - Step 4: Simplify right side
842,328.60x = 355,521,418,510.83 - Step 5: Solve for x
x = 355,521,418,510.83/842,328.60 - Step 6: Final answer
x = 422,069.75
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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.