Finding the Fourth Proportional to 1,420,123.77, 1,959,777.99 and 775,543.94
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Solution
The fourth proportional to 1,420,123.77, 1,959,777.99 and 775,543.94 is: 1,070,254.56
Step by Step Solution
- Step 1: Write the proportion equation
1,420,123.77 : 1,959,777.99 = 775,543.94 : x - Step 2: Convert to fraction form
1,420,123.77/1,959,777.99 = 775,543.94/x - Step 3: Cross multiply
1,420,123.77x = 1,959,777.99 × 775,543.94 - Step 4: Simplify right side
1,420,123.77x = 1,519,893,943,889.88 - Step 5: Solve for x
x = 1,519,893,943,889.88/1,420,123.77 - Step 6: Final answer
x = 1,070,254.56
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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.