Finding the Fourth Proportional to 928,926.12, 1,281,968.76 and 521,157.12
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Solution
The fourth proportional to 928,926.12, 1,281,968.76 and 521,157.12 is: 719,225.28
Step by Step Solution
- Step 1: Write the proportion equation
928,926.12 : 1,281,968.76 = 521,157.12 : x - Step 2: Convert to fraction form
928,926.12/1,281,968.76 = 521,157.12/x - Step 3: Cross multiply
928,926.12x = 1,281,968.76 × 521,157.12 - Step 4: Simplify right side
928,926.12x = 668,107,146,891.57 - Step 5: Solve for x
x = 668,107,146,891.57/928,926.12 - Step 6: Final answer
x = 719,225.28
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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.