Finding the Fourth Proportional to 1,425,831.68, 2,138,747.52 and 479,202.40
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Solution
The fourth proportional to 1,425,831.68, 2,138,747.52 and 479,202.40 is: 718,803.60
Step by Step Solution
- Step 1: Write the proportion equation
1,425,831.68 : 2,138,747.52 = 479,202.40 : x - Step 2: Convert to fraction form
1,425,831.68/2,138,747.52 = 479,202.40/x - Step 3: Cross multiply
1,425,831.68x = 2,138,747.52 × 479,202.40 - Step 4: Simplify right side
1,425,831.68x = 1,024,892,944,578.05 - Step 5: Solve for x
x = 1,024,892,944,578.05/1,425,831.68 - Step 6: Final answer
x = 718,803.60
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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.