Finding the Fourth Proportional to 566,990.08, 782,409.16 and 312,341.28
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Solution
The fourth proportional to 566,990.08, 782,409.16 and 312,341.28 is: 431,010.50
Step by Step Solution
- Step 1: Write the proportion equation
566,990.08 : 782,409.16 = 312,341.28 : x - Step 2: Convert to fraction form
566,990.08/782,409.16 = 312,341.28/x - Step 3: Cross multiply
566,990.08x = 782,409.16 × 312,341.28 - Step 4: Simplify right side
566,990.08x = 244,378,678,518.13 - Step 5: Solve for x
x = 244,378,678,518.13/566,990.08 - Step 6: Final answer
x = 431,010.50
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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.