Finding the Fourth Proportional to 853,965.18, 1,178,532.99 and 471,983.70
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Solution
The fourth proportional to 853,965.18, 1,178,532.99 and 471,983.70 is: 651,371.24
Step by Step Solution
- Step 1: Write the proportion equation
853,965.18 : 1,178,532.99 = 471,983.70 : x - Step 2: Convert to fraction form
853,965.18/1,178,532.99 = 471,983.70/x - Step 3: Cross multiply
853,965.18x = 1,178,532.99 × 471,983.70 - Step 4: Simplify right side
853,965.18x = 556,248,361,192.26 - Step 5: Solve for x
x = 556,248,361,192.26/853,965.18 - Step 6: Final answer
x = 651,371.24
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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.