Finding the Fourth Proportional to 710,745.57, 980,813.61 and 400,645.98
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Solution
The fourth proportional to 710,745.57, 980,813.61 and 400,645.98 is: 552,882.84
Step by Step Solution
- Step 1: Write the proportion equation
710,745.57 : 980,813.61 = 400,645.98 : x - Step 2: Convert to fraction form
710,745.57/980,813.61 = 400,645.98/x - Step 3: Cross multiply
710,745.57x = 980,813.61 × 400,645.98 - Step 4: Simplify right side
710,745.57x = 392,959,029,975.79 - Step 5: Solve for x
x = 392,959,029,975.79/710,745.57 - Step 6: Final answer
x = 552,882.84
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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.