Finding the Fourth Proportional to 920,203.68, 1,269,585.72 and 557,511.60
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Solution
The fourth proportional to 920,203.68, 1,269,585.72 and 557,511.60 is: 769,187.06
Step by Step Solution
- Step 1: Write the proportion equation
920,203.68 : 1,269,585.72 = 557,511.60 : x - Step 2: Convert to fraction form
920,203.68/1,269,585.72 = 557,511.60/x - Step 3: Cross multiply
920,203.68x = 1,269,585.72 × 557,511.60 - Step 4: Simplify right side
920,203.68x = 707,808,766,094.35 - Step 5: Solve for x
x = 707,808,766,094.35/920,203.68 - Step 6: Final answer
x = 769,187.06
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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.