Finding the Fourth Proportional to 1,220,169.40, 1,683,934.62 and 676,475.80
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Solution
The fourth proportional to 1,220,169.40, 1,683,934.62 and 676,475.80 is: 933,592.52
Step by Step Solution
- Step 1: Write the proportion equation
1,220,169.40 : 1,683,934.62 = 676,475.80 : x - Step 2: Convert to fraction form
1,220,169.40/1,683,934.62 = 676,475.80/x - Step 3: Cross multiply
1,220,169.40x = 1,683,934.62 × 676,475.80 - Step 4: Simplify right side
1,220,169.40x = 1,139,141,019,212.20 - Step 5: Solve for x
x = 1,139,141,019,212.20/1,220,169.40 - Step 6: Final answer
x = 933,592.52
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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.