Finding the Fourth Proportional to 509,374.68, 702,934.44 and 279,946.20
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Solution
The fourth proportional to 509,374.68, 702,934.44 and 279,946.20 is: 386,324.32
Step by Step Solution
- Step 1: Write the proportion equation
509,374.68 : 702,934.44 = 279,946.20 : x - Step 2: Convert to fraction form
509,374.68/702,934.44 = 279,946.20/x - Step 3: Cross multiply
509,374.68x = 702,934.44 × 279,946.20 - Step 4: Simplify right side
509,374.68x = 196,783,825,327.13 - Step 5: Solve for x
x = 196,783,825,327.13/509,374.68 - Step 6: Final answer
x = 386,324.32
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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.