Finding the Fourth Proportional to 640,848.40, 960,235.80 and 403,766.80
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Solution
The fourth proportional to 640,848.40, 960,235.80 and 403,766.80 is: 604,996.96
Step by Step Solution
- Step 1: Write the proportion equation
640,848.40 : 960,235.80 = 403,766.80 : x - Step 2: Convert to fraction form
640,848.40/960,235.80 = 403,766.80/x - Step 3: Cross multiply
640,848.40x = 960,235.80 × 403,766.80 - Step 4: Simplify right side
640,848.40x = 387,711,336,211.44 - Step 5: Solve for x
x = 387,711,336,211.44/640,848.40 - Step 6: Final answer
x = 604,996.96
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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.