Finding the Fourth Proportional to 1,543,201.66, 2,129,595.15 and 854,871.40
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Solution
The fourth proportional to 1,543,201.66, 2,129,595.15 and 854,871.40 is: 1,179,709.71
Step by Step Solution
- Step 1: Write the proportion equation
1,543,201.66 : 2,129,595.15 = 854,871.40 : x - Step 2: Convert to fraction form
1,543,201.66/2,129,595.15 = 854,871.40/x - Step 3: Cross multiply
1,543,201.66x = 2,129,595.15 × 854,871.40 - Step 4: Simplify right side
1,543,201.66x = 1,820,529,987,313.71 - Step 5: Solve for x
x = 1,820,529,987,313.71/1,543,201.66 - Step 6: Final answer
x = 1,179,709.71
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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.