Finding the Fourth Proportional to 640,376.74, 883,696.08 and 368,486.68
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Solution
The fourth proportional to 640,376.74, 883,696.08 and 368,486.68 is: 508,497.91
Step by Step Solution
- Step 1: Write the proportion equation
640,376.74 : 883,696.08 = 368,486.68 : x - Step 2: Convert to fraction form
640,376.74/883,696.08 = 368,486.68/x - Step 3: Cross multiply
640,376.74x = 883,696.08 × 368,486.68 - Step 4: Simplify right side
640,376.74x = 325,630,234,648.21 - Step 5: Solve for x
x = 325,630,234,648.21/640,376.74 - Step 6: Final answer
x = 508,497.91
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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.