Finding the Fourth Proportional to 747,941.31, 1,122,320.21 and 433,013.31
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Solution
The fourth proportional to 747,941.31, 1,122,320.21 and 433,013.31 is: 649,756.31
Step by Step Solution
- Step 1: Write the proportion equation
747,941.31 : 1,122,320.21 = 433,013.31 : x - Step 2: Convert to fraction form
747,941.31/1,122,320.21 = 433,013.31/x - Step 3: Cross multiply
747,941.31x = 1,122,320.21 × 433,013.31 - Step 4: Simplify right side
747,941.31x = 485,979,586,846.93 - Step 5: Solve for x
x = 485,979,586,846.93/747,941.31 - Step 6: Final answer
x = 649,756.31
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.