Finding the Fourth Proportional to 868,943.12, 1,303,236.50 and 329,013.14
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Solution
The fourth proportional to 868,943.12, 1,303,236.50 and 329,013.14 is: 493,452.24
Step by Step Solution
- Step 1: Write the proportion equation
868,943.12 : 1,303,236.50 = 329,013.14 : x - Step 2: Convert to fraction form
868,943.12/1,303,236.50 = 329,013.14/x - Step 3: Cross multiply
868,943.12x = 1,303,236.50 × 329,013.14 - Step 4: Simplify right side
868,943.12x = 428,781,924,866.36 - Step 5: Solve for x
x = 428,781,924,866.36/868,943.12 - Step 6: Final answer
x = 493,452.24
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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.