Finding the Fourth Proportional to 908,458.74, 1,253,698.32 and 521,306.88
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Solution
The fourth proportional to 908,458.74, 1,253,698.32 and 521,306.88 is: 719,417.99
Step by Step Solution
- Step 1: Write the proportion equation
908,458.74 : 1,253,698.32 = 521,306.88 : x - Step 2: Convert to fraction form
908,458.74/1,253,698.32 = 521,306.88/x - Step 3: Cross multiply
908,458.74x = 1,253,698.32 × 521,306.88 - Step 4: Simplify right side
908,458.74x = 653,561,559,660.44 - Step 5: Solve for x
x = 653,561,559,660.44/908,458.74 - Step 6: Final answer
x = 719,417.99
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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.