Finding the Fourth Proportional to 712,440.67, 983,160.74 and 385,748.08
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Solution
The fourth proportional to 712,440.67, 983,160.74 and 385,748.08 is: 532,328.35
Step by Step Solution
- Step 1: Write the proportion equation
712,440.67 : 983,160.74 = 385,748.08 : x - Step 2: Convert to fraction form
712,440.67/983,160.74 = 385,748.08/x - Step 3: Cross multiply
712,440.67x = 983,160.74 × 385,748.08 - Step 4: Simplify right side
712,440.67x = 379,252,366,292.85 - Step 5: Solve for x
x = 379,252,366,292.85/712,440.67 - Step 6: Final answer
x = 532,328.35
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1.5x scale
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.