Finding the Fourth Proportional to 715,804.08, 987,811.65 and 409,885.08
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Solution
The fourth proportional to 715,804.08, 987,811.65 and 409,885.08 is: 565,642.57
Step by Step Solution
- Step 1: Write the proportion equation
715,804.08 : 987,811.65 = 409,885.08 : x - Step 2: Convert to fraction form
715,804.08/987,811.65 = 409,885.08/x - Step 3: Cross multiply
715,804.08x = 987,811.65 × 409,885.08 - Step 4: Simplify right side
715,804.08x = 404,889,257,185.18 - Step 5: Solve for x
x = 404,889,257,185.18/715,804.08 - Step 6: Final answer
x = 565,642.57
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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.