Finding the Fourth Proportional to 920,395.44, 1,270,537.58 and 618,764.40
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Solution
The fourth proportional to 920,395.44, 1,270,537.58 and 618,764.40 is: 854,158.32
Step by Step Solution
- Step 1: Write the proportion equation
920,395.44 : 1,270,537.58 = 618,764.40 : x - Step 2: Convert to fraction form
920,395.44/1,270,537.58 = 618,764.40/x - Step 3: Cross multiply
920,395.44x = 1,270,537.58 × 618,764.40 - Step 4: Simplify right side
920,395.44x = 786,163,423,366.15 - Step 5: Solve for x
x = 786,163,423,366.15/920,395.44 - Step 6: Final answer
x = 854,158.32
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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.