Finding the Fourth Proportional to 545,621.40, 818,432.10 and 246,439.80
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Solution
The fourth proportional to 545,621.40, 818,432.10 and 246,439.80 is: 369,659.70
Step by Step Solution
- Step 1: Write the proportion equation
545,621.40 : 818,432.10 = 246,439.80 : x - Step 2: Convert to fraction form
545,621.40/818,432.10 = 246,439.80/x - Step 3: Cross multiply
545,621.40x = 818,432.10 × 246,439.80 - Step 4: Simplify right side
545,621.40x = 201,694,243,037.58 - Step 5: Solve for x
x = 201,694,243,037.58/545,621.40 - Step 6: Final answer
x = 369,659.70
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1.5x scale
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.