Finding the Fourth Proportional to 664,417.40, 994,001.70 and 576,645.80
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Solution
The fourth proportional to 664,417.40, 994,001.70 and 576,645.80 is: 862,690.99
Step by Step Solution
- Step 1: Write the proportion equation
664,417.40 : 994,001.70 = 576,645.80 : x - Step 2: Convert to fraction form
664,417.40/994,001.70 = 576,645.80/x - Step 3: Cross multiply
664,417.40x = 994,001.70 × 576,645.80 - Step 4: Simplify right side
664,417.40x = 573,186,905,497.86 - Step 5: Solve for x
x = 573,186,905,497.86/664,417.40 - Step 6: Final answer
x = 862,690.99
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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.