Finding the Fourth Proportional to 664,392.40, 996,746.99 and 215,113.41
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Solution
The fourth proportional to 664,392.40, 996,746.99 and 215,113.41 is: 322,721.40
Step by Step Solution
- Step 1: Write the proportion equation
664,392.40 : 996,746.99 = 215,113.41 : x - Step 2: Convert to fraction form
664,392.40/996,746.99 = 215,113.41/x - Step 3: Cross multiply
664,392.40x = 996,746.99 × 215,113.41 - Step 4: Simplify right side
664,392.40x = 214,413,643,926.14 - Step 5: Solve for x
x = 214,413,643,926.14/664,392.40 - Step 6: Final answer
x = 322,721.40
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.