Finding the Fourth Proportional to 814,675.68, 1,124,201.60 and 492,195.20
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Solution
The fourth proportional to 814,675.68, 1,124,201.60 and 492,195.20 is: 679,198.66
Step by Step Solution
- Step 1: Write the proportion equation
814,675.68 : 1,124,201.60 = 492,195.20 : x - Step 2: Convert to fraction form
814,675.68/1,124,201.60 = 492,195.20/x - Step 3: Cross multiply
814,675.68x = 1,124,201.60 × 492,195.20 - Step 4: Simplify right side
814,675.68x = 553,326,631,352.32 - Step 5: Solve for x
x = 553,326,631,352.32/814,675.68 - Step 6: Final answer
x = 679,198.66
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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.