Finding the Fourth Proportional to 747,748.42, 1,031,887.56 and 408,216.67
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Solution
The fourth proportional to 747,748.42, 1,031,887.56 and 408,216.67 is: 563,336.13
Step by Step Solution
- Step 1: Write the proportion equation
747,748.42 : 1,031,887.56 = 408,216.67 : x - Step 2: Convert to fraction form
747,748.42/1,031,887.56 = 408,216.67/x - Step 3: Cross multiply
747,748.42x = 1,031,887.56 × 408,216.67 - Step 4: Simplify right side
747,748.42x = 421,233,703,557.63 - Step 5: Solve for x
x = 421,233,703,557.63/747,748.42 - Step 6: Final answer
x = 563,336.13
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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.