Finding the Fourth Proportional to 1,040,420.40, 1,559,593.80 and 478,474.80
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Solution
The fourth proportional to 1,040,420.40, 1,559,593.80 and 478,474.80 is: 717,235.39
Step by Step Solution
- Step 1: Write the proportion equation
1,040,420.40 : 1,559,593.80 = 478,474.80 : x - Step 2: Convert to fraction form
1,040,420.40/1,559,593.80 = 478,474.80/x - Step 3: Cross multiply
1,040,420.40x = 1,559,593.80 × 478,474.80 - Step 4: Simplify right side
1,040,420.40x = 746,226,331,536.24 - Step 5: Solve for x
x = 746,226,331,536.24/1,040,420.40 - Step 6: Final answer
x = 717,235.39
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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.