Finding the Fourth Proportional to 747,735.39, 1,031,869.58 and 408,203.64
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Solution
The fourth proportional to 747,735.39, 1,031,869.58 and 408,203.64 is: 563,318.15
Step by Step Solution
- Step 1: Write the proportion equation
747,735.39 : 1,031,869.58 = 408,203.64 : x - Step 2: Convert to fraction form
747,735.39/1,031,869.58 = 408,203.64/x - Step 3: Cross multiply
747,735.39x = 1,031,869.58 × 408,203.64 - Step 4: Simplify right side
747,735.39x = 421,212,916,520.25 - Step 5: Solve for x
x = 421,212,916,520.25/747,735.39 - Step 6: Final answer
x = 563,318.15
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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.