Finding the Fourth Proportional to 1,087,013.84, 1,630,624.44 and 422,217.68
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Solution
The fourth proportional to 1,087,013.84, 1,630,624.44 and 422,217.68 is: 633,366.79
Step by Step Solution
- Step 1: Write the proportion equation
1,087,013.84 : 1,630,624.44 = 422,217.68 : x - Step 2: Convert to fraction form
1,087,013.84/1,630,624.44 = 422,217.68/x - Step 3: Cross multiply
1,087,013.84x = 1,630,624.44 × 422,217.68 - Step 4: Simplify right side
1,087,013.84x = 688,478,468,008.10 - Step 5: Solve for x
x = 688,478,468,008.10/1,087,013.84 - Step 6: Final answer
x = 633,366.79
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.