Finding the Fourth Proportional to 692,853.21, 956,082.87 and 386,905.68
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Solution
The fourth proportional to 692,853.21, 956,082.87 and 386,905.68 is: 533,899.37
Step by Step Solution
- Step 1: Write the proportion equation
692,853.21 : 956,082.87 = 386,905.68 : x - Step 2: Convert to fraction form
692,853.21/956,082.87 = 386,905.68/x - Step 3: Cross multiply
692,853.21x = 956,082.87 × 386,905.68 - Step 4: Simplify right side
692,853.21x = 369,913,892,953.70 - Step 5: Solve for x
x = 369,913,892,953.70/692,853.21 - Step 6: Final answer
x = 533,899.37
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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.