Finding the Fourth Proportional to 1,613,178.08, 2,226,214.07 and 878,153.50
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Solution
The fourth proportional to 1,613,178.08, 2,226,214.07 and 878,153.50 is: 1,211,867.25
Step by Step Solution
- Step 1: Write the proportion equation
1,613,178.08 : 2,226,214.07 = 878,153.50 : x - Step 2: Convert to fraction form
1,613,178.08/2,226,214.07 = 878,153.50/x - Step 3: Cross multiply
1,613,178.08x = 2,226,214.07 × 878,153.50 - Step 4: Simplify right side
1,613,178.08x = 1,954,957,677,319.75 - Step 5: Solve for x
x = 1,954,957,677,319.75/1,613,178.08 - Step 6: Final answer
x = 1,211,867.25
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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.