Finding the Fourth Proportional to 680,217.18, 938,671.52 and 370,121.05
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Solution
The fourth proportional to 680,217.18, 938,671.52 and 370,121.05 is: 510,751.70
Step by Step Solution
- Step 1: Write the proportion equation
680,217.18 : 938,671.52 = 370,121.05 : x - Step 2: Convert to fraction form
680,217.18/938,671.52 = 370,121.05/x - Step 3: Cross multiply
680,217.18x = 938,671.52 × 370,121.05 - Step 4: Simplify right side
680,217.18x = 347,422,083,894.14 - Step 5: Solve for x
x = 347,422,083,894.14/680,217.18 - Step 6: Final answer
x = 510,751.70
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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.