Finding the Fourth Proportional to 1,145,670.14, 1,581,074.84 and 636,372.52
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Solution
The fourth proportional to 1,145,670.14, 1,581,074.84 and 636,372.52 is: 878,221.88
Step by Step Solution
- Step 1: Write the proportion equation
1,145,670.14 : 1,581,074.84 = 636,372.52 : x - Step 2: Convert to fraction form
1,145,670.14/1,581,074.84 = 636,372.52/x - Step 3: Cross multiply
1,145,670.14x = 1,581,074.84 × 636,372.52 - Step 4: Simplify right side
1,145,670.14x = 1,006,152,580,239.40 - Step 5: Solve for x
x = 1,006,152,580,239.40/1,145,670.14 - Step 6: Final answer
x = 878,221.88
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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.