Finding the Fourth Proportional to 518,476.24, 714,885.19 and 355,211.02
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Solution
The fourth proportional to 518,476.24, 714,885.19 and 355,211.02 is: 489,771.91
Step by Step Solution
- Step 1: Write the proportion equation
518,476.24 : 714,885.19 = 355,211.02 : x - Step 2: Convert to fraction form
518,476.24/714,885.19 = 355,211.02/x - Step 3: Cross multiply
518,476.24x = 714,885.19 × 355,211.02 - Step 4: Simplify right side
518,476.24x = 253,935,099,526.44 - Step 5: Solve for x
x = 253,935,099,526.44/518,476.24 - Step 6: Final answer
x = 489,771.91
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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.