Finding the Fourth Proportional to 747,745.17, 1,031,883.08 and 408,213.42
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Solution
The fourth proportional to 747,745.17, 1,031,883.08 and 408,213.42 is: 563,331.65
Step by Step Solution
- Step 1: Write the proportion equation
747,745.17 : 1,031,883.08 = 408,213.42 : x - Step 2: Convert to fraction form
747,745.17/1,031,883.08 = 408,213.42/x - Step 3: Cross multiply
747,745.17x = 1,031,883.08 × 408,213.42 - Step 4: Simplify right side
747,745.17x = 421,228,519,085.87 - Step 5: Solve for x
x = 421,228,519,085.87/747,745.17 - Step 6: Final answer
x = 563,331.65
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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.