Finding the Fourth Proportional to 749,103.94, 1,123,688.70 and 216,678.79
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Solution
The fourth proportional to 749,103.94, 1,123,688.70 and 216,678.79 is: 325,027.67
Step by Step Solution
- Step 1: Write the proportion equation
749,103.94 : 1,123,688.70 = 216,678.79 : x - Step 2: Convert to fraction form
749,103.94/1,123,688.70 = 216,678.79/x - Step 3: Cross multiply
749,103.94x = 1,123,688.70 × 216,678.79 - Step 4: Simplify right side
749,103.94x = 243,479,507,852.67 - Step 5: Solve for x
x = 243,479,507,852.67/749,103.94 - Step 6: Final answer
x = 325,027.67
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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.