Finding the Fourth Proportional to 771,207.30, 1,156,292.55 and 411,437.70
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Solution
The fourth proportional to 771,207.30, 1,156,292.55 and 411,437.70 is: 616,879.98
Step by Step Solution
- Step 1: Write the proportion equation
771,207.30 : 1,156,292.55 = 411,437.70 : x - Step 2: Convert to fraction form
771,207.30/1,156,292.55 = 411,437.70/x - Step 3: Cross multiply
771,207.30x = 1,156,292.55 × 411,437.70 - Step 4: Simplify right side
771,207.30x = 475,742,347,299.14 - Step 5: Solve for x
x = 475,742,347,299.14/771,207.30 - Step 6: Final answer
x = 616,879.98
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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.