Finding the Fourth Proportional to 615,909.80, 923,000.70 and 489,765.80
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Solution
The fourth proportional to 615,909.80, 923,000.70 and 489,765.80 is: 733,961.66
Step by Step Solution
- Step 1: Write the proportion equation
615,909.80 : 923,000.70 = 489,765.80 : x - Step 2: Convert to fraction form
615,909.80/923,000.70 = 489,765.80/x - Step 3: Cross multiply
615,909.80x = 923,000.70 × 489,765.80 - Step 4: Simplify right side
615,909.80x = 452,054,176,236.06 - Step 5: Solve for x
x = 452,054,176,236.06/615,909.80 - Step 6: Final answer
x = 733,961.66
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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.