Finding the Fourth Proportional to 791,116.19, 1,091,717.88 and 464,423.99
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Solution
The fourth proportional to 791,116.19, 1,091,717.88 and 464,423.99 is: 640,891.92
Step by Step Solution
- Step 1: Write the proportion equation
791,116.19 : 1,091,717.88 = 464,423.99 : x - Step 2: Convert to fraction form
791,116.19/1,091,717.88 = 464,423.99/x - Step 3: Cross multiply
791,116.19x = 1,091,717.88 × 464,423.99 - Step 4: Simplify right side
791,116.19x = 507,019,968,325.35 - Step 5: Solve for x
x = 507,019,968,325.35/791,116.19 - Step 6: Final answer
x = 640,891.92
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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.