Finding the Fourth Proportional to 780,209.58, 1,169,982.06 and 306,562.70
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Solution
The fourth proportional to 780,209.58, 1,169,982.06 and 306,562.70 is: 459,713.48
Step by Step Solution
- Step 1: Write the proportion equation
780,209.58 : 1,169,982.06 = 306,562.70 : x - Step 2: Convert to fraction form
780,209.58/1,169,982.06 = 306,562.70/x - Step 3: Cross multiply
780,209.58x = 1,169,982.06 × 306,562.70 - Step 4: Simplify right side
780,209.58x = 358,672,859,265.16 - Step 5: Solve for x
x = 358,672,859,265.16/780,209.58 - Step 6: Final answer
x = 459,713.48
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.