Finding the Fourth Proportional to 777,706.92, 1,073,374.74 and 455,398.20
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Solution
The fourth proportional to 777,706.92, 1,073,374.74 and 455,398.20 is: 628,531.02
Step by Step Solution
- Step 1: Write the proportion equation
777,706.92 : 1,073,374.74 = 455,398.20 : x - Step 2: Convert to fraction form
777,706.92/1,073,374.74 = 455,398.20/x - Step 3: Cross multiply
777,706.92x = 1,073,374.74 × 455,398.20 - Step 4: Simplify right side
777,706.92x = 488,812,924,521.47 - Step 5: Solve for x
x = 488,812,924,521.47/777,706.92 - Step 6: Final answer
x = 628,531.02
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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.