Finding the Fourth Proportional to 716,295.84, 988,511.76 and 394,030.68
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Solution
The fourth proportional to 716,295.84, 988,511.76 and 394,030.68 is: 543,775.27
Step by Step Solution
- Step 1: Write the proportion equation
716,295.84 : 988,511.76 = 394,030.68 : x - Step 2: Convert to fraction form
716,295.84/988,511.76 = 394,030.68/x - Step 3: Cross multiply
716,295.84x = 988,511.76 × 394,030.68 - Step 4: Simplify right side
716,295.84x = 389,503,960,980.80 - Step 5: Solve for x
x = 389,503,960,980.80/716,295.84 - Step 6: Final answer
x = 543,775.27
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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.