Finding the Fourth Proportional to 640,061.08, 883,317.18 and 353,578.84
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Solution
The fourth proportional to 640,061.08, 883,317.18 and 353,578.84 is: 487,956.97
Step by Step Solution
- Step 1: Write the proportion equation
640,061.08 : 883,317.18 = 353,578.84 : x - Step 2: Convert to fraction form
640,061.08/883,317.18 = 353,578.84/x - Step 3: Cross multiply
640,061.08x = 883,317.18 × 353,578.84 - Step 4: Simplify right side
640,061.08x = 312,322,263,856.47 - Step 5: Solve for x
x = 312,322,263,856.47/640,061.08 - Step 6: Final answer
x = 487,956.97
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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.