Finding the Fourth Proportional to 730,386.05, 1,007,913.92 and 408,098.79
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Solution
The fourth proportional to 730,386.05, 1,007,913.92 and 408,098.79 is: 563,165.81
Step by Step Solution
- Step 1: Write the proportion equation
730,386.05 : 1,007,913.92 = 408,098.79 : x - Step 2: Convert to fraction form
730,386.05/1,007,913.92 = 408,098.79/x - Step 3: Cross multiply
730,386.05x = 1,007,913.92 × 408,098.79 - Step 4: Simplify right side
730,386.05x = 411,328,449,135.66 - Step 5: Solve for x
x = 411,328,449,135.66/730,386.05 - Step 6: Final answer
x = 563,165.81
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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.