Finding the Fourth Proportional to 1,691,457.48, 2,331,953.13 and 1,343,751.57
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Solution
The fourth proportional to 1,691,457.48, 2,331,953.13 and 1,343,751.57 is: 1,852,583.18
Step by Step Solution
- Step 1: Write the proportion equation
1,691,457.48 : 2,331,953.13 = 1,343,751.57 : x - Step 2: Convert to fraction form
1,691,457.48/2,331,953.13 = 1,343,751.57/x - Step 3: Cross multiply
1,691,457.48x = 2,331,953.13 × 1,343,751.57 - Step 4: Simplify right side
1,691,457.48x = 3,133,565,679,603.91 - Step 5: Solve for x
x = 3,133,565,679,603.91/1,691,457.48 - Step 6: Final answer
x = 1,852,583.18
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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.