Finding the Fourth Proportional to 877,749.87, 1,316,489.99 and 278,633.19
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Solution
The fourth proportional to 877,749.87, 1,316,489.99 and 278,633.19 is: 417,906.99
Step by Step Solution
- Step 1: Write the proportion equation
877,749.87 : 1,316,489.99 = 278,633.19 : x - Step 2: Convert to fraction form
877,749.87/1,316,489.99 = 278,633.19/x - Step 3: Cross multiply
877,749.87x = 1,316,489.99 × 278,633.19 - Step 4: Simplify right side
877,749.87x = 366,817,804,123.60 - Step 5: Solve for x
x = 366,817,804,123.60/877,749.87 - Step 6: Final answer
x = 417,906.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.