Finding the Fourth Proportional to 872,117.80, 1,308,176.70 and 374,453.80
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Solution
The fourth proportional to 872,117.80, 1,308,176.70 and 374,453.80 is: 561,680.70
Step by Step Solution
- Step 1: Write the proportion equation
872,117.80 : 1,308,176.70 = 374,453.80 : x - Step 2: Convert to fraction form
872,117.80/1,308,176.70 = 374,453.80/x - Step 3: Cross multiply
872,117.80x = 1,308,176.70 × 374,453.80 - Step 4: Simplify right side
872,117.80x = 489,851,736,386.46 - Step 5: Solve for x
x = 489,851,736,386.46/872,117.80 - Step 6: Final answer
x = 561,680.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.