Finding the Fourth Proportional to 639,758.18, 959,581.44 and 260,718.68
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Solution
The fourth proportional to 639,758.18, 959,581.44 and 260,718.68 is: 391,055.27
Step by Step Solution
- Step 1: Write the proportion equation
639,758.18 : 959,581.44 = 260,718.68 : x - Step 2: Convert to fraction form
639,758.18/959,581.44 = 260,718.68/x - Step 3: Cross multiply
639,758.18x = 959,581.44 × 260,718.68 - Step 4: Simplify right side
639,758.18x = 250,180,806,389.30 - Step 5: Solve for x
x = 250,180,806,389.30/639,758.18 - Step 6: Final answer
x = 391,055.27
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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.