Finding the Fourth Proportional to 853,678.64, 1,178,076.13 and 471,702.08
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Solution
The fourth proportional to 853,678.64, 1,178,076.13 and 471,702.08 is: 650,948.65
Step by Step Solution
- Step 1: Write the proportion equation
853,678.64 : 1,178,076.13 = 471,702.08 : x - Step 2: Convert to fraction form
853,678.64/1,178,076.13 = 471,702.08/x - Step 3: Cross multiply
853,678.64x = 1,178,076.13 × 471,702.08 - Step 4: Simplify right side
853,678.64x = 555,700,953,849.72 - Step 5: Solve for x
x = 555,700,953,849.72/853,678.64 - Step 6: Final answer
x = 650,948.65
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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.