Finding the Fourth Proportional to 915,794.40, 1,373,302.80 and 442,624.80
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Solution
The fourth proportional to 915,794.40, 1,373,302.80 and 442,624.80 is: 663,749.28
Step by Step Solution
- Step 1: Write the proportion equation
915,794.40 : 1,373,302.80 = 442,624.80 : x - Step 2: Convert to fraction form
915,794.40/1,373,302.80 = 442,624.80/x - Step 3: Cross multiply
915,794.40x = 1,373,302.80 × 442,624.80 - Step 4: Simplify right side
915,794.40x = 607,857,877,189.44 - Step 5: Solve for x
x = 607,857,877,189.44/915,794.40 - Step 6: Final answer
x = 663,749.28
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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.