Finding the Fourth Proportional to 2,913,989.58, 4,021,355.16 and 1,607,391.54
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Solution
The fourth proportional to 2,913,989.58, 4,021,355.16 and 1,607,391.54 is: 2,218,227.65
Step by Step Solution
- Step 1: Write the proportion equation
2,913,989.58 : 4,021,355.16 = 1,607,391.54 : x - Step 2: Convert to fraction form
2,913,989.58/4,021,355.16 = 1,607,391.54/x - Step 3: Cross multiply
2,913,989.58x = 4,021,355.16 × 1,607,391.54 - Step 4: Simplify right side
2,913,989.58x = 6,463,892,263,519.35 - Step 5: Solve for x
x = 6,463,892,263,519.35/2,913,989.58 - Step 6: Final answer
x = 2,218,227.65
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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.