Finding the Fourth Proportional to 715,495.64, 987,516.99 and 409,572.02
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Solution
The fourth proportional to 715,495.64, 987,516.99 and 409,572.02 is: 565,285.52
Step by Step Solution
- Step 1: Write the proportion equation
715,495.64 : 987,516.99 = 409,572.02 : x - Step 2: Convert to fraction form
715,495.64/987,516.99 = 409,572.02/x - Step 3: Cross multiply
715,495.64x = 987,516.99 × 409,572.02 - Step 4: Simplify right side
715,495.64x = 404,459,328,378.62 - Step 5: Solve for x
x = 404,459,328,378.62/715,495.64 - Step 6: Final answer
x = 565,285.52
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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.