Finding the Fourth Proportional to 1,572,457.23, 2,169,841.05 and 919,235.97
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Solution
The fourth proportional to 1,572,457.23, 2,169,841.05 and 919,235.97 is: 1,268,457.99
Step by Step Solution
- Step 1: Write the proportion equation
1,572,457.23 : 2,169,841.05 = 919,235.97 : x - Step 2: Convert to fraction form
1,572,457.23/2,169,841.05 = 919,235.97/x - Step 3: Cross multiply
1,572,457.23x = 2,169,841.05 × 919,235.97 - Step 4: Simplify right side
1,572,457.23x = 1,994,595,942,342.57 - Step 5: Solve for x
x = 1,994,595,942,342.57/1,572,457.23 - Step 6: Final answer
x = 1,268,457.99
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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.