Finding the Fourth Proportional to 806,590.20, 1,209,885.30 and 245,623.80
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Solution
The fourth proportional to 806,590.20, 1,209,885.30 and 245,623.80 is: 368,435.70
Step by Step Solution
- Step 1: Write the proportion equation
806,590.20 : 1,209,885.30 = 245,623.80 : x - Step 2: Convert to fraction form
806,590.20/1,209,885.30 = 245,623.80/x - Step 3: Cross multiply
806,590.20x = 1,209,885.30 × 245,623.80 - Step 4: Simplify right side
806,590.20x = 297,176,624,950.14 - Step 5: Solve for x
x = 297,176,624,950.14/806,590.20 - Step 6: Final answer
x = 368,435.70
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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.