Finding the Fourth Proportional to 891,134.30, 1,336,701.45 and 513,220.70
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Solution
The fourth proportional to 891,134.30, 1,336,701.45 and 513,220.70 is: 769,831.05
Step by Step Solution
- Step 1: Write the proportion equation
891,134.30 : 1,336,701.45 = 513,220.70 : x - Step 2: Convert to fraction form
891,134.30/1,336,701.45 = 513,220.70/x - Step 3: Cross multiply
891,134.30x = 1,336,701.45 × 513,220.70 - Step 4: Simplify right side
891,134.30x = 686,022,853,860.02 - Step 5: Solve for x
x = 686,022,853,860.02/891,134.30 - Step 6: Final answer
x = 769,831.05
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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.