Finding the Fourth Proportional to 812,530.80, 1,121,278.62 and 449,946.84
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Solution
The fourth proportional to 812,530.80, 1,121,278.62 and 449,946.84 is: 620,918.95
Step by Step Solution
- Step 1: Write the proportion equation
812,530.80 : 1,121,278.62 = 449,946.84 : x - Step 2: Convert to fraction form
812,530.80/1,121,278.62 = 449,946.84/x - Step 3: Cross multiply
812,530.80x = 1,121,278.62 × 449,946.84 - Step 4: Simplify right side
812,530.80x = 504,515,771,828.56 - Step 5: Solve for x
x = 504,515,771,828.56/812,530.80 - Step 6: Final answer
x = 620,918.95
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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.