Finding the Fourth Proportional to 509,631.98, 703,292.58 and 280,193.18
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Solution
The fourth proportional to 509,631.98, 703,292.58 and 280,193.18 is: 386,666.83
Step by Step Solution
- Step 1: Write the proportion equation
509,631.98 : 703,292.58 = 280,193.18 : x - Step 2: Convert to fraction form
509,631.98/703,292.58 = 280,193.18/x - Step 3: Cross multiply
509,631.98x = 703,292.58 × 280,193.18 - Step 4: Simplify right side
509,631.98x = 197,057,780,944.14 - Step 5: Solve for x
x = 197,057,780,944.14/509,631.98 - Step 6: Final answer
x = 386,666.83
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.