Finding the Fourth Proportional to 867,408.76, 1,197,030.18 and 485,471.08
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Solution
The fourth proportional to 867,408.76, 1,197,030.18 and 485,471.08 is: 669,953.50
Step by Step Solution
- Step 1: Write the proportion equation
867,408.76 : 1,197,030.18 = 485,471.08 : x - Step 2: Convert to fraction form
867,408.76/1,197,030.18 = 485,471.08/x - Step 3: Cross multiply
867,408.76x = 1,197,030.18 × 485,471.08 - Step 4: Simplify right side
867,408.76x = 581,123,534,277.19 - Step 5: Solve for x
x = 581,123,534,277.19/867,408.76 - Step 6: Final answer
x = 669,953.50
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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.