Finding the Fourth Proportional to 783,792.84, 1,176,213.60 and 285,156.84
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Solution
The fourth proportional to 783,792.84, 1,176,213.60 and 285,156.84 is: 427,926.02
Step by Step Solution
- Step 1: Write the proportion equation
783,792.84 : 1,176,213.60 = 285,156.84 : x - Step 2: Convert to fraction form
783,792.84/1,176,213.60 = 285,156.84/x - Step 3: Cross multiply
783,792.84x = 1,176,213.60 × 285,156.84 - Step 4: Simplify right side
783,792.84x = 335,405,353,341.02 - Step 5: Solve for x
x = 335,405,353,341.02/783,792.84 - Step 6: Final answer
x = 427,926.02
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1.5x scale
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.