Finding the Fourth Proportional to 679,730.99, 1,019,530.26 and 206,420.45
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Solution
The fourth proportional to 679,730.99, 1,019,530.26 and 206,420.45 is: 309,610.56
Step by Step Solution
- Step 1: Write the proportion equation
679,730.99 : 1,019,530.26 = 206,420.45 : x - Step 2: Convert to fraction form
679,730.99/1,019,530.26 = 206,420.45/x - Step 3: Cross multiply
679,730.99x = 1,019,530.26 × 206,420.45 - Step 4: Simplify right side
679,730.99x = 210,451,889,960.17 - Step 5: Solve for x
x = 210,451,889,960.17/679,730.99 - Step 6: Final answer
x = 309,610.56
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.