Finding the Fourth Proportional to 1,660,145.18, 2,291,163.32 and 971,775.59
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Solution
The fourth proportional to 1,660,145.18, 2,291,163.32 and 971,775.59 is: 1,341,145.71
Step by Step Solution
- Step 1: Write the proportion equation
1,660,145.18 : 2,291,163.32 = 971,775.59 : x - Step 2: Convert to fraction form
1,660,145.18/2,291,163.32 = 971,775.59/x - Step 3: Cross multiply
1,660,145.18x = 2,291,163.32 × 971,775.59 - Step 4: Simplify right side
1,660,145.18x = 2,226,496,582,220.48 - Step 5: Solve for x
x = 2,226,496,582,220.48/1,660,145.18 - Step 6: Final answer
x = 1,341,145.71
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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.