Finding the Third Proportional to 390,187.75 and 851,281.75
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Solution
The third proportional to 390,187.75 and 851,281.75 is: 1,857,261.33
Step by Step Solution
- Step 1: Write the proportion equation
390,187.75 : 851,281.75 = 851,281.75 : x - Step 2: Convert to fraction form
390,187.75/851,281.75 = 851,281.75/x - Step 3: Cross multiply
390,187.75x = 851,281.75 × 851,281.75 - Step 4: Simplify right side
390,187.75x = 724,680,617,883.06 - Step 5: Solve for x
x = 724,680,617,883.06/390,187.75 - Step 6: Final answer
x = 1,857,261.33
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These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.