Finding the Fourth Proportional to 916,633.81, 1,264,935.63 and 508,711.96
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Solution
The fourth proportional to 916,633.81, 1,264,935.63 and 508,711.96 is: 702,011.94
Step by Step Solution
- Step 1: Write the proportion equation
916,633.81 : 1,264,935.63 = 508,711.96 : x - Step 2: Convert to fraction form
916,633.81/1,264,935.63 = 508,711.96/x - Step 3: Cross multiply
916,633.81x = 1,264,935.63 × 508,711.96 - Step 4: Simplify right side
916,633.81x = 643,487,883,611.14 - Step 5: Solve for x
x = 643,487,883,611.14/916,633.81 - Step 6: Final answer
x = 702,011.94
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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.