Finding the Fourth Proportional to 842,624.80, 1,162,738.68 and 480,027.06
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Solution
The fourth proportional to 842,624.80, 1,162,738.68 and 480,027.06 is: 662,389.74
Step by Step Solution
- Step 1: Write the proportion equation
842,624.80 : 1,162,738.68 = 480,027.06 : x - Step 2: Convert to fraction form
842,624.80/1,162,738.68 = 480,027.06/x - Step 3: Cross multiply
842,624.80x = 1,162,738.68 × 480,027.06 - Step 4: Simplify right side
842,624.80x = 558,146,021,894.85 - Step 5: Solve for x
x = 558,146,021,894.85/842,624.80 - Step 6: Final answer
x = 662,389.74
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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.