Finding the Fourth Proportional to 1,491,566.52, 2,058,351.30 and 812,503.02
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Solution
The fourth proportional to 1,491,566.52, 2,058,351.30 and 812,503.02 is: 1,121,248.45
Step by Step Solution
- Step 1: Write the proportion equation
1,491,566.52 : 2,058,351.30 = 812,503.02 : x - Step 2: Convert to fraction form
1,491,566.52/2,058,351.30 = 812,503.02/x - Step 3: Cross multiply
1,491,566.52x = 2,058,351.30 × 812,503.02 - Step 4: Simplify right side
1,491,566.52x = 1,672,416,647,470.93 - Step 5: Solve for x
x = 1,672,416,647,470.93/1,491,566.52 - Step 6: Final answer
x = 1,121,248.45
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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.