Finding the Fourth Proportional to 880,685.84, 1,215,352.68 and 478,277.84
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Solution
The fourth proportional to 880,685.84, 1,215,352.68 and 478,277.84 is: 660,026.80
Step by Step Solution
- Step 1: Write the proportion equation
880,685.84 : 1,215,352.68 = 478,277.84 : x - Step 2: Convert to fraction form
880,685.84/1,215,352.68 = 478,277.84/x - Step 3: Cross multiply
880,685.84x = 1,215,352.68 × 478,277.84 - Step 4: Simplify right side
880,685.84x = 581,276,254,628.61 - Step 5: Solve for x
x = 581,276,254,628.61/880,685.84 - Step 6: Final answer
x = 660,026.80
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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.