Finding the Fourth Proportional to 712,817.44, 984,985.68 and 678,267.68
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Solution
The fourth proportional to 712,817.44, 984,985.68 and 678,267.68 is: 937,244.12
Step by Step Solution
- Step 1: Write the proportion equation
712,817.44 : 984,985.68 = 678,267.68 : x - Step 2: Convert to fraction form
712,817.44/984,985.68 = 678,267.68/x - Step 3: Cross multiply
712,817.44x = 984,985.68 × 678,267.68 - Step 4: Simplify right side
712,817.44x = 668,083,952,006.82 - Step 5: Solve for x
x = 668,083,952,006.82/712,817.44 - Step 6: Final answer
x = 937,244.12
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1.5x scale
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.