Finding the Fourth Proportional to 1,389,700.99, 2,084,910.88 and 813,810.62
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Solution
The fourth proportional to 1,389,700.99, 2,084,910.88 and 813,810.62 is: 1,220,926.39
Step by Step Solution
- Step 1: Write the proportion equation
1,389,700.99 : 2,084,910.88 = 813,810.62 : x - Step 2: Convert to fraction form
1,389,700.99/2,084,910.88 = 813,810.62/x - Step 3: Cross multiply
1,389,700.99x = 2,084,910.88 × 813,810.62 - Step 4: Simplify right side
1,389,700.99x = 1,696,722,615,897.55 - Step 5: Solve for x
x = 1,696,722,615,897.55/1,389,700.99 - Step 6: Final answer
x = 1,220,926.39
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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.