Finding the Fourth Proportional to 715,393.49, 987,297.96 and 409,565.84
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Solution
The fourth proportional to 715,393.49, 987,297.96 and 409,565.84 is: 565,232.31
Step by Step Solution
- Step 1: Write the proportion equation
715,393.49 : 987,297.96 = 409,565.84 : x - Step 2: Convert to fraction form
715,393.49/987,297.96 = 409,565.84/x - Step 3: Cross multiply
715,393.49x = 987,297.96 × 409,565.84 - Step 4: Simplify right side
715,393.49x = 404,363,513,381.20 - Step 5: Solve for x
x = 404,363,513,381.20/715,393.49 - Step 6: Final answer
x = 565,232.31
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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.