Finding the Fourth Proportional to 509,364.99, 702,927.86 and 318,489.03
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Solution
The fourth proportional to 509,364.99, 702,927.86 and 318,489.03 is: 439,517.47
Step by Step Solution
- Step 1: Write the proportion equation
509,364.99 : 702,927.86 = 318,489.03 : x - Step 2: Convert to fraction form
509,364.99/702,927.86 = 318,489.03/x - Step 3: Cross multiply
509,364.99x = 702,927.86 × 318,489.03 - Step 4: Simplify right side
509,364.99x = 223,874,810,698.93 - Step 5: Solve for x
x = 223,874,810,698.93/509,364.99 - Step 6: Final answer
x = 439,517.47
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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.