Finding the Fourth Proportional to 665,446.80, 998,170.20 and 553,253.70
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Solution
The fourth proportional to 665,446.80, 998,170.20 and 553,253.70 is: 829,880.55
Step by Step Solution
- Step 1: Write the proportion equation
665,446.80 : 998,170.20 = 553,253.70 : x - Step 2: Convert to fraction form
665,446.80/998,170.20 = 553,253.70/x - Step 3: Cross multiply
665,446.80x = 998,170.20 × 553,253.70 - Step 4: Simplify right side
665,446.80x = 552,241,356,379.74 - Step 5: Solve for x
x = 552,241,356,379.74/665,446.80 - Step 6: Final answer
x = 829,880.55
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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.