Finding the Fourth Proportional to 659,927.31, 910,699.68 and 358,121.31
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Solution
The fourth proportional to 659,927.31, 910,699.68 and 358,121.31 is: 494,207.40
Step by Step Solution
- Step 1: Write the proportion equation
659,927.31 : 910,699.68 = 358,121.31 : x - Step 2: Convert to fraction form
659,927.31/910,699.68 = 358,121.31/x - Step 3: Cross multiply
659,927.31x = 910,699.68 × 358,121.31 - Step 4: Simplify right side
659,927.31x = 326,140,962,418.18 - Step 5: Solve for x
x = 326,140,962,418.18/659,927.31 - Step 6: Final answer
x = 494,207.40
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.