Finding the Fourth Proportional to 1,319,713.34, 1,979,604.41 and 421,153.88
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Solution
The fourth proportional to 1,319,713.34, 1,979,604.41 and 421,153.88 is: 631,741.79
Step by Step Solution
- Step 1: Write the proportion equation
1,319,713.34 : 1,979,604.41 = 421,153.88 : x - Step 2: Convert to fraction form
1,319,713.34/1,979,604.41 = 421,153.88/x - Step 3: Cross multiply
1,319,713.34x = 1,979,604.41 × 421,153.88 - Step 4: Simplify right side
1,319,713.34x = 833,718,066,132.82 - Step 5: Solve for x
x = 833,718,066,132.82/1,319,713.34 - Step 6: Final answer
x = 631,741.79
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.