Finding the Fourth Proportional to 694,178.12, 1,041,397.50 and 315,125.44
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Solution
The fourth proportional to 694,178.12, 1,041,397.50 and 315,125.44 is: 472,747.32
Step by Step Solution
- Step 1: Write the proportion equation
694,178.12 : 1,041,397.50 = 315,125.44 : x - Step 2: Convert to fraction form
694,178.12/1,041,397.50 = 315,125.44/x - Step 3: Cross multiply
694,178.12x = 1,041,397.50 × 315,125.44 - Step 4: Simplify right side
694,178.12x = 328,170,845,402.40 - Step 5: Solve for x
x = 328,170,845,402.40/694,178.12 - Step 6: Final answer
x = 472,747.32
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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.