Finding the Fourth Proportional to 579,708.74, 869,568.71 and 219,782.80
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Solution
The fourth proportional to 579,708.74, 869,568.71 and 219,782.80 is: 329,676.32
Step by Step Solution
- Step 1: Write the proportion equation
579,708.74 : 869,568.71 = 219,782.80 : x - Step 2: Convert to fraction form
579,708.74/869,568.71 = 219,782.80/x - Step 3: Cross multiply
579,708.74x = 869,568.71 × 219,782.80 - Step 4: Simplify right side
579,708.74x = 191,116,245,876.19 - Step 5: Solve for x
x = 191,116,245,876.19/579,708.74 - Step 6: Final answer
x = 329,676.32
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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.