Finding the Fourth Proportional to 647,347.62, 893,444.97 and 389,485.20
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Solution
The fourth proportional to 647,347.62, 893,444.97 and 389,485.20 is: 537,552.90
Step by Step Solution
- Step 1: Write the proportion equation
647,347.62 : 893,444.97 = 389,485.20 : x - Step 2: Convert to fraction form
647,347.62/893,444.97 = 389,485.20/x - Step 3: Cross multiply
647,347.62x = 893,444.97 × 389,485.20 - Step 4: Simplify right side
647,347.62x = 347,983,592,829.44 - Step 5: Solve for x
x = 347,983,592,829.44/647,347.62 - Step 6: Final answer
x = 537,552.90
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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.