Finding the Fourth Proportional to 729,638.10, 1,092,124.35 and 519,686.10
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Solution
The fourth proportional to 729,638.10, 1,092,124.35 and 519,686.10 is: 777,867.61
Step by Step Solution
- Step 1: Write the proportion equation
729,638.10 : 1,092,124.35 = 519,686.10 : x - Step 2: Convert to fraction form
729,638.10/1,092,124.35 = 519,686.10/x - Step 3: Cross multiply
729,638.10x = 1,092,124.35 × 519,686.10 - Step 4: Simplify right side
729,638.10x = 567,561,844,166.54 - Step 5: Solve for x
x = 567,561,844,166.54/729,638.10 - Step 6: Final answer
x = 777,867.61
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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.