Finding the Fourth Proportional to 513,750.24, 709,008.12 and 287,397.36
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Solution
The fourth proportional to 513,750.24, 709,008.12 and 287,397.36 is: 396,626.70
Step by Step Solution
- Step 1: Write the proportion equation
513,750.24 : 709,008.12 = 287,397.36 : x - Step 2: Convert to fraction form
513,750.24/709,008.12 = 287,397.36/x - Step 3: Cross multiply
513,750.24x = 709,008.12 × 287,397.36 - Step 4: Simplify right side
513,750.24x = 203,767,061,906.56 - Step 5: Solve for x
x = 203,767,061,906.56/513,750.24 - Step 6: Final answer
x = 396,626.70
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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.