Finding the Fourth Proportional to 776,477.36, 1,164,715.68 and 215,511.68
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Solution
The fourth proportional to 776,477.36, 1,164,715.68 and 215,511.68 is: 323,267.42
Step by Step Solution
- Step 1: Write the proportion equation
776,477.36 : 1,164,715.68 = 215,511.68 : x - Step 2: Convert to fraction form
776,477.36/1,164,715.68 = 215,511.68/x - Step 3: Cross multiply
776,477.36x = 1,164,715.68 × 215,511.68 - Step 4: Simplify right side
776,477.36x = 251,009,832,919.14 - Step 5: Solve for x
x = 251,009,832,919.14/776,477.36 - Step 6: Final answer
x = 323,267.42
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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.