Finding the Fourth Proportional to 476,609.10, 715,012.08 and 139,660.74
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Solution
The fourth proportional to 476,609.10, 715,012.08 and 139,660.74 is: 209,519.95
Step by Step Solution
- Step 1: Write the proportion equation
476,609.10 : 715,012.08 = 139,660.74 : x - Step 2: Convert to fraction form
476,609.10/715,012.08 = 139,660.74/x - Step 3: Cross multiply
476,609.10x = 715,012.08 × 139,660.74 - Step 4: Simplify right side
476,609.10x = 99,859,115,678.01 - Step 5: Solve for x
x = 99,859,115,678.01/476,609.10 - Step 6: Final answer
x = 209,519.95
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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.