Finding the Fourth Proportional to 729,329.20, 1,006,524.81 and 407,102.08
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Solution
The fourth proportional to 729,329.20, 1,006,524.81 and 407,102.08 is: 561,829.07
Step by Step Solution
- Step 1: Write the proportion equation
729,329.20 : 1,006,524.81 = 407,102.08 : x - Step 2: Convert to fraction form
729,329.20/1,006,524.81 = 407,102.08/x - Step 3: Cross multiply
729,329.20x = 1,006,524.81 × 407,102.08 - Step 4: Simplify right side
729,329.20x = 409,758,343,722.61 - Step 5: Solve for x
x = 409,758,343,722.61/729,329.20 - Step 6: Final answer
x = 561,829.07
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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.