Finding the Fourth Proportional to 640,657.62, 883,960.84 and 382,484.32
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Solution
The fourth proportional to 640,657.62, 883,960.84 and 382,484.32 is: 527,740.79
Step by Step Solution
- Step 1: Write the proportion equation
640,657.62 : 883,960.84 = 382,484.32 : x - Step 2: Convert to fraction form
640,657.62/883,960.84 = 382,484.32/x - Step 3: Cross multiply
640,657.62x = 883,960.84 × 382,484.32 - Step 4: Simplify right side
640,657.62x = 338,101,160,794.03 - Step 5: Solve for x
x = 338,101,160,794.03/640,657.62 - Step 6: Final answer
x = 527,740.79
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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.