Finding the Fourth Proportional to 1,425,146.08, 2,137,831.44 and 478,513.12
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Solution
The fourth proportional to 1,425,146.08, 2,137,831.44 and 478,513.12 is: 717,807.39
Step by Step Solution
- Step 1: Write the proportion equation
1,425,146.08 : 2,137,831.44 = 478,513.12 : x - Step 2: Convert to fraction form
1,425,146.08/2,137,831.44 = 478,513.12/x - Step 3: Cross multiply
1,425,146.08x = 2,137,831.44 × 478,513.12 - Step 4: Simplify right side
1,425,146.08x = 1,022,980,392,388.49 - Step 5: Solve for x
x = 1,022,980,392,388.49/1,425,146.08 - Step 6: Final answer
x = 717,807.39
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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.