Finding the Fourth Proportional to 855,639.84, 1,180,796.96 and 468,448.80
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Solution
The fourth proportional to 855,639.84, 1,180,796.96 and 468,448.80 is: 646,466.99
Step by Step Solution
- Step 1: Write the proportion equation
855,639.84 : 1,180,796.96 = 468,448.80 : x - Step 2: Convert to fraction form
855,639.84/1,180,796.96 = 468,448.80/x - Step 3: Cross multiply
855,639.84x = 1,180,796.96 × 468,448.80 - Step 4: Simplify right side
855,639.84x = 553,142,910,709.42 - Step 5: Solve for x
x = 553,142,910,709.42/855,639.84 - Step 6: Final answer
x = 646,466.99
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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.