Finding the Fourth Proportional to 572,166.74, 789,563.49 and 317,515.70
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Solution
The fourth proportional to 572,166.74, 789,563.49 and 317,515.70 is: 438,156.90
Step by Step Solution
- Step 1: Write the proportion equation
572,166.74 : 789,563.49 = 317,515.70 : x - Step 2: Convert to fraction form
572,166.74/789,563.49 = 317,515.70/x - Step 3: Cross multiply
572,166.74x = 789,563.49 × 317,515.70 - Step 4: Simplify right side
572,166.74x = 250,698,804,221.79 - Step 5: Solve for x
x = 250,698,804,221.79/572,166.74 - Step 6: Final answer
x = 438,156.90
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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.