Finding the Fourth Proportional to 1,201,949.30, 1,658,690.12 and 658,085.13
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Solution
The fourth proportional to 1,201,949.30, 1,658,690.12 and 658,085.13 is: 908,157.53
Step by Step Solution
- Step 1: Write the proportion equation
1,201,949.30 : 1,658,690.12 = 658,085.13 : x - Step 2: Convert to fraction form
1,201,949.30/1,658,690.12 = 658,085.13/x - Step 3: Cross multiply
1,201,949.30x = 1,658,690.12 × 658,085.13 - Step 4: Simplify right side
1,201,949.30x = 1,091,559,304,895.13 - Step 5: Solve for x
x = 1,091,559,304,895.13/1,201,949.30 - Step 6: Final answer
x = 908,157.53
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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.