Finding the Fourth Proportional to 691,798.18, 1,037,641.88 and 307,665.98
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Solution
The fourth proportional to 691,798.18, 1,037,641.88 and 307,665.98 is: 461,474.33
Step by Step Solution
- Step 1: Write the proportion equation
691,798.18 : 1,037,641.88 = 307,665.98 : x - Step 2: Convert to fraction form
691,798.18/1,037,641.88 = 307,665.98/x - Step 3: Cross multiply
691,798.18x = 1,037,641.88 × 307,665.98 - Step 4: Simplify right side
691,798.18x = 319,247,101,480.20 - Step 5: Solve for x
x = 319,247,101,480.20/691,798.18 - Step 6: Final answer
x = 461,474.33
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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.