Finding the Fourth Proportional to 921,486.98, 1,271,715.90 and 558,926.12
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Solution
The fourth proportional to 921,486.98, 1,271,715.90 and 558,926.12 is: 771,356.78
Step by Step Solution
- Step 1: Write the proportion equation
921,486.98 : 1,271,715.90 = 558,926.12 : x - Step 2: Convert to fraction form
921,486.98/1,271,715.90 = 558,926.12/x - Step 3: Cross multiply
921,486.98x = 1,271,715.90 × 558,926.12 - Step 4: Simplify right side
921,486.98x = 710,795,234,812.63 - Step 5: Solve for x
x = 710,795,234,812.63/921,486.98 - Step 6: Final answer
x = 771,356.78
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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.