Finding the Fourth Proportional to 921,213.08, 1,271,261.18 and 513,332.11
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Solution
The fourth proportional to 921,213.08, 1,271,261.18 and 513,332.11 is: 708,391.14
Step by Step Solution
- Step 1: Write the proportion equation
921,213.08 : 1,271,261.18 = 513,332.11 : x - Step 2: Convert to fraction form
921,213.08/1,271,261.18 = 513,332.11/x - Step 3: Cross multiply
921,213.08x = 1,271,261.18 × 513,332.11 - Step 4: Simplify right side
921,213.08x = 652,579,183,187.48 - Step 5: Solve for x
x = 652,579,183,187.48/921,213.08 - Step 6: Final answer
x = 708,391.14
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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.