Finding the Fourth Proportional to 692,391.18, 1,038,645.09 and 219,066.06
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Solution
The fourth proportional to 692,391.18, 1,038,645.09 and 219,066.06 is: 328,617.54
Step by Step Solution
- Step 1: Write the proportion equation
692,391.18 : 1,038,645.09 = 219,066.06 : x - Step 2: Convert to fraction form
692,391.18/1,038,645.09 = 219,066.06/x - Step 3: Cross multiply
692,391.18x = 1,038,645.09 × 219,066.06 - Step 4: Simplify right side
692,391.18x = 227,531,887,604.65 - Step 5: Solve for x
x = 227,531,887,604.65/692,391.18 - Step 6: Final answer
x = 328,617.54
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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.