Finding the Fourth Proportional to 665,251.80, 997,877.70 and 385,315.80
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Solution
The fourth proportional to 665,251.80, 997,877.70 and 385,315.80 is: 577,973.70
Step by Step Solution
- Step 1: Write the proportion equation
665,251.80 : 997,877.70 = 385,315.80 : x - Step 2: Convert to fraction form
665,251.80/997,877.70 = 385,315.80/x - Step 3: Cross multiply
665,251.80x = 997,877.70 × 385,315.80 - Step 4: Simplify right side
665,251.80x = 384,498,044,277.66 - Step 5: Solve for x
x = 384,498,044,277.66/665,251.80 - Step 6: Final answer
x = 577,973.70
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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.