Finding the Fourth Proportional to 447,621.79, 617,718.04 and 243,674.18
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Solution
The fourth proportional to 447,621.79, 617,718.04 and 243,674.18 is: 336,270.35
Step by Step Solution
- Step 1: Write the proportion equation
447,621.79 : 617,718.04 = 243,674.18 : x - Step 2: Convert to fraction form
447,621.79/617,718.04 = 243,674.18/x - Step 3: Cross multiply
447,621.79x = 617,718.04 × 243,674.18 - Step 4: Simplify right side
447,621.79x = 150,521,936,868.21 - Step 5: Solve for x
x = 150,521,936,868.21/447,621.79 - Step 6: Final answer
x = 336,270.35
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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.