Finding the Fourth Proportional to 509,803.14, 703,237.68 and 316,122.42
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Solution
The fourth proportional to 509,803.14, 703,237.68 and 316,122.42 is: 436,068.71
Step by Step Solution
- Step 1: Write the proportion equation
509,803.14 : 703,237.68 = 316,122.42 : x - Step 2: Convert to fraction form
509,803.14/703,237.68 = 316,122.42/x - Step 3: Cross multiply
509,803.14x = 703,237.68 × 316,122.42 - Step 4: Simplify right side
509,803.14x = 222,309,197,236.79 - Step 5: Solve for x
x = 222,309,197,236.79/509,803.14 - Step 6: Final answer
x = 436,068.71
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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.