Finding the Fourth Proportional to 1,124,496.75, 1,686,746.75 and 459,648.75
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Solution
The fourth proportional to 1,124,496.75, 1,686,746.75 and 459,648.75 is: 689,473.79
Step by Step Solution
- Step 1: Write the proportion equation
1,124,496.75 : 1,686,746.75 = 459,648.75 : x - Step 2: Convert to fraction form
1,124,496.75/1,686,746.75 = 459,648.75/x - Step 3: Cross multiply
1,124,496.75x = 1,686,746.75 × 459,648.75 - Step 4: Simplify right side
1,124,496.75x = 775,311,032,905.82 - Step 5: Solve for x
x = 775,311,032,905.82/1,124,496.75 - Step 6: Final answer
x = 689,473.79
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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.