Finding the Fourth Proportional to 880,771.84, 1,215,471.36 and 478,363.84
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Solution
The fourth proportional to 880,771.84, 1,215,471.36 and 478,363.84 is: 660,145.48
Step by Step Solution
- Step 1: Write the proportion equation
880,771.84 : 1,215,471.36 = 478,363.84 : x - Step 2: Convert to fraction form
880,771.84/1,215,471.36 = 478,363.84/x - Step 3: Cross multiply
880,771.84x = 1,215,471.36 × 478,363.84 - Step 4: Simplify right side
880,771.84x = 581,437,547,179.62 - Step 5: Solve for x
x = 581,437,547,179.62/880,771.84 - Step 6: Final answer
x = 660,145.48
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1.5x scale
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.