Finding the Fourth Proportional to 720,444.02, 994,214.34 and 393,762.26
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Solution
The fourth proportional to 720,444.02, 994,214.34 and 393,762.26 is: 543,392.80
Step by Step Solution
- Step 1: Write the proportion equation
720,444.02 : 994,214.34 = 393,762.26 : x - Step 2: Convert to fraction form
720,444.02/994,214.34 = 393,762.26/x - Step 3: Cross multiply
720,444.02x = 994,214.34 × 393,762.26 - Step 4: Simplify right side
720,444.02x = 391,484,087,928.34 - Step 5: Solve for x
x = 391,484,087,928.34/720,444.02 - Step 6: Final answer
x = 543,392.80
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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.