Finding the Fourth Proportional to 668,742.80, 922,857.36 and 366,936.80
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Solution
The fourth proportional to 668,742.80, 922,857.36 and 366,936.80 is: 506,368.56
Step by Step Solution
- Step 1: Write the proportion equation
668,742.80 : 922,857.36 = 366,936.80 : x - Step 2: Convert to fraction form
668,742.80/922,857.36 = 366,936.80/x - Step 3: Cross multiply
668,742.80x = 922,857.36 × 366,936.80 - Step 4: Simplify right side
668,742.80x = 338,630,326,534.85 - Step 5: Solve for x
x = 338,630,326,534.85/668,742.80 - Step 6: Final answer
x = 506,368.56
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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.