Finding the Fourth Proportional to 447,572.81, 617,664.08 and 316,984.41
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Solution
The fourth proportional to 447,572.81, 617,664.08 and 316,984.41 is: 437,448.12
Step by Step Solution
- Step 1: Write the proportion equation
447,572.81 : 617,664.08 = 316,984.41 : x - Step 2: Convert to fraction form
447,572.81/617,664.08 = 316,984.41/x - Step 3: Cross multiply
447,572.81x = 617,664.08 × 316,984.41 - Step 4: Simplify right side
447,572.81x = 195,789,882,392.07 - Step 5: Solve for x
x = 195,789,882,392.07/447,572.81 - Step 6: Final answer
x = 437,448.12
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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.