Finding the Fourth Proportional to 775,470.81, 1,070,965.58 and 690,937.59
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Solution
The fourth proportional to 775,470.81, 1,070,965.58 and 690,937.59 is: 954,220.80
Step by Step Solution
- Step 1: Write the proportion equation
775,470.81 : 1,070,965.58 = 690,937.59 : x - Step 2: Convert to fraction form
775,470.81/1,070,965.58 = 690,937.59/x - Step 3: Cross multiply
775,470.81x = 1,070,965.58 × 690,937.59 - Step 4: Simplify right side
775,470.81x = 739,970,376,818.15 - Step 5: Solve for x
x = 739,970,376,818.15/775,470.81 - Step 6: Final answer
x = 954,220.80
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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.