Finding the Fourth Proportional to 1,581,417.96, 2,182,347.60 and 856,250.70
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Solution
The fourth proportional to 1,581,417.96, 2,182,347.60 and 856,250.70 is: 1,181,620.99
Step by Step Solution
- Step 1: Write the proportion equation
1,581,417.96 : 2,182,347.60 = 856,250.70 : x - Step 2: Convert to fraction form
1,581,417.96/2,182,347.60 = 856,250.70/x - Step 3: Cross multiply
1,581,417.96x = 2,182,347.60 × 856,250.70 - Step 4: Simplify right side
1,581,417.96x = 1,868,636,660,143.32 - Step 5: Solve for x
x = 1,868,636,660,143.32/1,581,417.96 - Step 6: Final answer
x = 1,181,620.99
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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.