Finding the Fourth Proportional to 424,718.08, 636,329.78 and 399,433.12
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Solution
The fourth proportional to 424,718.08, 636,329.78 and 399,433.12 is: 598,446.83
Step by Step Solution
- Step 1: Write the proportion equation
424,718.08 : 636,329.78 = 399,433.12 : x - Step 2: Convert to fraction form
424,718.08/636,329.78 = 399,433.12/x - Step 3: Cross multiply
424,718.08x = 636,329.78 × 399,433.12 - Step 4: Simplify right side
424,718.08x = 254,171,191,963.72 - Step 5: Solve for x
x = 254,171,191,963.72/424,718.08 - Step 6: Final answer
x = 598,446.83
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.