Finding the Fourth Proportional to 509,366.49, 702,929.93 and 318,490.53
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Solution
The fourth proportional to 509,366.49, 702,929.93 and 318,490.53 is: 439,519.54
Step by Step Solution
- Step 1: Write the proportion equation
509,366.49 : 702,929.93 = 318,490.53 : x - Step 2: Convert to fraction form
509,366.49/702,929.93 = 318,490.53/x - Step 3: Cross multiply
509,366.49x = 702,929.93 × 318,490.53 - Step 4: Simplify right side
509,366.49x = 223,876,524,366.11 - Step 5: Solve for x
x = 223,876,524,366.11/509,366.49 - Step 6: Final answer
x = 439,519.54
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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.