Finding the Fourth Proportional to 853,968.84, 1,178,434.62 and 471,985.80
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Solution
The fourth proportional to 853,968.84, 1,178,434.62 and 471,985.80 is: 651,316.98
Step by Step Solution
- Step 1: Write the proportion equation
853,968.84 : 1,178,434.62 = 471,985.80 : x - Step 2: Convert to fraction form
853,968.84/1,178,434.62 = 471,985.80/x - Step 3: Cross multiply
853,968.84x = 1,178,434.62 × 471,985.80 - Step 4: Simplify right side
853,968.84x = 556,204,406,868.40 - Step 5: Solve for x
x = 556,204,406,868.40/853,968.84 - Step 6: Final answer
x = 651,316.98
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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.