Finding the Fourth Proportional to 493,601.76, 740,698.68 and 213,118.80
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Solution
The fourth proportional to 493,601.76, 740,698.68 and 213,118.80 is: 319,806.02
Step by Step Solution
- Step 1: Write the proportion equation
493,601.76 : 740,698.68 = 213,118.80 : x - Step 2: Convert to fraction form
493,601.76/740,698.68 = 213,118.80/x - Step 3: Cross multiply
493,601.76x = 740,698.68 × 213,118.80 - Step 4: Simplify right side
493,601.76x = 157,856,813,843.18 - Step 5: Solve for x
x = 157,856,813,843.18/493,601.76 - Step 6: Final answer
x = 319,806.02
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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.