Finding the Fourth Proportional to 921,507.64, 1,271,526.36 and 513,520.05
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Solution
The fourth proportional to 921,507.64, 1,271,526.36 and 513,520.05 is: 708,571.75
Step by Step Solution
- Step 1: Write the proportion equation
921,507.64 : 1,271,526.36 = 513,520.05 : x - Step 2: Convert to fraction form
921,507.64/1,271,526.36 = 513,520.05/x - Step 3: Cross multiply
921,507.64x = 1,271,526.36 × 513,520.05 - Step 4: Simplify right side
921,507.64x = 652,954,282,806.04 - Step 5: Solve for x
x = 652,954,282,806.04/921,507.64 - Step 6: Final answer
x = 708,571.75
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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.