Finding the Fourth Proportional to 921,442.87, 1,271,597.47 and 513,570.99
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Solution
The fourth proportional to 921,442.87, 1,271,597.47 and 513,570.99 is: 708,731.48
Step by Step Solution
- Step 1: Write the proportion equation
921,442.87 : 1,271,597.47 = 513,570.99 : x - Step 2: Convert to fraction form
921,442.87/1,271,597.47 = 513,570.99/x - Step 3: Cross multiply
921,442.87x = 1,271,597.47 × 513,570.99 - Step 4: Simplify right side
921,442.87x = 653,055,571,549.40 - Step 5: Solve for x
x = 653,055,571,549.40/921,442.87 - Step 6: Final answer
x = 708,731.48
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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.