Finding the Fourth Proportional to 509,898.09, 703,714.47 and 318,972.99
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Solution
The fourth proportional to 509,898.09, 703,714.47 and 318,972.99 is: 440,217.20
Step by Step Solution
- Step 1: Write the proportion equation
509,898.09 : 703,714.47 = 318,972.99 : x - Step 2: Convert to fraction form
509,898.09/703,714.47 = 318,972.99/x - Step 3: Cross multiply
509,898.09x = 703,714.47 × 318,972.99 - Step 4: Simplify right side
509,898.09x = 224,465,908,602.17 - Step 5: Solve for x
x = 224,465,908,602.17/509,898.09 - Step 6: Final answer
x = 440,217.20
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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.