Finding the Fourth Proportional to 921,493.14, 1,271,734.47 and 513,726.99
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Solution
The fourth proportional to 921,493.14, 1,271,734.47 and 513,726.99 is: 708,984.47
Step by Step Solution
- Step 1: Write the proportion equation
921,493.14 : 1,271,734.47 = 513,726.99 : x - Step 2: Convert to fraction form
921,493.14/1,271,734.47 = 513,726.99/x - Step 3: Cross multiply
921,493.14x = 1,271,734.47 × 513,726.99 - Step 4: Simplify right side
921,493.14x = 653,324,321,352.35 - Step 5: Solve for x
x = 653,324,321,352.35/921,493.14 - Step 6: Final answer
x = 708,984.47
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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.