Finding the Fourth Proportional to 747,934.88, 1,032,153.88 and 408,403.12
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Solution
The fourth proportional to 747,934.88, 1,032,153.88 and 408,403.12 is: 563,598.35
Step by Step Solution
- Step 1: Write the proportion equation
747,934.88 : 1,032,153.88 = 408,403.12 : x - Step 2: Convert to fraction form
747,934.88/1,032,153.88 = 408,403.12/x - Step 3: Cross multiply
747,934.88x = 1,032,153.88 × 408,403.12 - Step 4: Simplify right side
747,934.88x = 421,534,864,912.11 - Step 5: Solve for x
x = 421,534,864,912.11/747,934.88 - Step 6: Final answer
x = 563,598.35
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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.