Finding the Fourth Proportional to 888,638.28, 1,226,315.70 and 480,738.88
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Solution
The fourth proportional to 888,638.28, 1,226,315.70 and 480,738.88 is: 663,416.89
Step by Step Solution
- Step 1: Write the proportion equation
888,638.28 : 1,226,315.70 = 480,738.88 : x - Step 2: Convert to fraction form
888,638.28/1,226,315.70 = 480,738.88/x - Step 3: Cross multiply
888,638.28x = 1,226,315.70 × 480,738.88 - Step 4: Simplify right side
888,638.28x = 589,537,637,677.31 - Step 5: Solve for x
x = 589,537,637,677.31/888,638.28 - Step 6: Final answer
x = 663,416.89
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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.