Finding the Third Proportional to 390,203.58 and 851,129.65
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Solution
The third proportional to 390,203.58 and 851,129.65 is: 1,856,522.39
Step by Step Solution
- Step 1: Write the proportion equation
390,203.58 : 851,129.65 = 851,129.65 : x - Step 2: Convert to fraction form
390,203.58/851,129.65 = 851,129.65/x - Step 3: Cross multiply
390,203.58x = 851,129.65 × 851,129.65 - Step 4: Simplify right side
390,203.58x = 724,421,678,449.34 - Step 5: Solve for x
x = 724,421,678,449.34/390,203.58 - Step 6: Final answer
x = 1,856,522.39
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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.