Finding the Fourth Proportional to 832,639.12, 1,248,961.88 and 201,551.92
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Solution
The fourth proportional to 832,639.12, 1,248,961.88 and 201,551.92 is: 302,328.65
Step by Step Solution
- Step 1: Write the proportion equation
832,639.12 : 1,248,961.88 = 201,551.92 : x - Step 2: Convert to fraction form
832,639.12/1,248,961.88 = 201,551.92/x - Step 3: Cross multiply
832,639.12x = 1,248,961.88 × 201,551.92 - Step 4: Simplify right side
832,639.12x = 251,730,664,920.81 - Step 5: Solve for x
x = 251,730,664,920.81/832,639.12 - Step 6: Final answer
x = 302,328.65
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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.