Finding the Fourth Proportional to 1,581,555.47, 2,182,556.99 and 856,403.15
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Solution
The fourth proportional to 1,581,555.47, 2,182,556.99 and 856,403.15 is: 1,181,842.00
Step by Step Solution
- Step 1: Write the proportion equation
1,581,555.47 : 2,182,556.99 = 856,403.15 : x - Step 2: Convert to fraction form
1,581,555.47/2,182,556.99 = 856,403.15/x - Step 3: Cross multiply
1,581,555.47x = 2,182,556.99 × 856,403.15 - Step 4: Simplify right side
1,581,555.47x = 1,869,148,672,518.74 - Step 5: Solve for x
x = 1,869,148,672,518.74/1,581,555.47 - Step 6: Final answer
x = 1,181,842.00
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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.