Finding the Fourth Proportional to 637,639.36, 880,365.84 and 396,282.08
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Solution
The fourth proportional to 637,639.36, 880,365.84 and 396,282.08 is: 547,132.48
Step by Step Solution
- Step 1: Write the proportion equation
637,639.36 : 880,365.84 = 396,282.08 : x - Step 2: Convert to fraction form
637,639.36/880,365.84 = 396,282.08/x - Step 3: Cross multiply
637,639.36x = 880,365.84 × 396,282.08 - Step 4: Simplify right side
637,639.36x = 348,873,206,236.15 - Step 5: Solve for x
x = 348,873,206,236.15/637,639.36 - Step 6: Final answer
x = 547,132.48
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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.