Finding the Fourth Proportional to 880,931.28, 1,215,652.68 and 478,514.64
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Solution
The fourth proportional to 880,931.28, 1,215,652.68 and 478,514.64 is: 660,332.56
Step by Step Solution
- Step 1: Write the proportion equation
880,931.28 : 1,215,652.68 = 478,514.64 : x - Step 2: Convert to fraction form
880,931.28/1,215,652.68 = 478,514.64/x - Step 3: Cross multiply
880,931.28x = 1,215,652.68 × 478,514.64 - Step 4: Simplify right side
880,931.28x = 581,707,604,535.24 - Step 5: Solve for x
x = 581,707,604,535.24/880,931.28 - Step 6: Final answer
x = 660,332.56
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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.