Finding the Fourth Proportional to 1,581,276.24, 2,182,134.75 and 856,118.07
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Solution
The fourth proportional to 1,581,276.24, 2,182,134.75 and 856,118.07 is: 1,181,428.61
Step by Step Solution
- Step 1: Write the proportion equation
1,581,276.24 : 2,182,134.75 = 856,118.07 : x - Step 2: Convert to fraction form
1,581,276.24/2,182,134.75 = 856,118.07/x - Step 3: Cross multiply
1,581,276.24x = 2,182,134.75 × 856,118.07 - Step 4: Simplify right side
1,581,276.24x = 1,868,164,990,649.93 - Step 5: Solve for x
x = 1,868,164,990,649.93/1,581,276.24 - Step 6: Final answer
x = 1,181,428.61
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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.