Finding the Fourth Proportional to 528,611.91, 729,152.64 and 313,599.75
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Solution
The fourth proportional to 528,611.91, 729,152.64 and 313,599.75 is: 432,570.82
Step by Step Solution
- Step 1: Write the proportion equation
528,611.91 : 729,152.64 = 313,599.75 : x - Step 2: Convert to fraction form
528,611.91/729,152.64 = 313,599.75/x - Step 3: Cross multiply
528,611.91x = 729,152.64 × 313,599.75 - Step 4: Simplify right side
528,611.91x = 228,662,085,615.84 - Step 5: Solve for x
x = 228,662,085,615.84/528,611.91 - Step 6: Final answer
x = 432,570.82
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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.