Finding the Fourth Proportional to 894,495.12, 1,234,403.28 and 492,087.12
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Solution
The fourth proportional to 894,495.12, 1,234,403.28 and 492,087.12 is: 679,080.23
Step by Step Solution
- Step 1: Write the proportion equation
894,495.12 : 1,234,403.28 = 492,087.12 : x - Step 2: Convert to fraction form
894,495.12/1,234,403.28 = 492,087.12/x - Step 3: Cross multiply
894,495.12x = 1,234,403.28 × 492,087.12 - Step 4: Simplify right side
894,495.12x = 607,433,954,973.75 - Step 5: Solve for x
x = 607,433,954,973.75/894,495.12 - Step 6: Final answer
x = 679,080.23
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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.