Finding the Fourth Proportional to 1,430,660.30, 1,974,310.74 and 786,121.97
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Solution
The fourth proportional to 1,430,660.30, 1,974,310.74 and 786,121.97 is: 1,084,848.06
Step by Step Solution
- Step 1: Write the proportion equation
1,430,660.30 : 1,974,310.74 = 786,121.97 : x - Step 2: Convert to fraction form
1,430,660.30/1,974,310.74 = 786,121.97/x - Step 3: Cross multiply
1,430,660.30x = 1,974,310.74 × 786,121.97 - Step 4: Simplify right side
1,430,660.30x = 1,552,049,038,449.40 - Step 5: Solve for x
x = 1,552,049,038,449.40/1,430,660.30 - Step 6: Final answer
x = 1,084,848.06
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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.