Finding the Fourth Proportional to 393,451.08, 542,014.14 and 312,852.84
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Solution
The fourth proportional to 393,451.08, 542,014.14 and 312,852.84 is: 430,982.84
Step by Step Solution
- Step 1: Write the proportion equation
393,451.08 : 542,014.14 = 312,852.84 : x - Step 2: Convert to fraction form
393,451.08/542,014.14 = 312,852.84/x - Step 3: Cross multiply
393,451.08x = 542,014.14 × 312,852.84 - Step 4: Simplify right side
393,451.08x = 169,570,663,019.16 - Step 5: Solve for x
x = 169,570,663,019.16/393,451.08 - Step 6: Final answer
x = 430,982.84
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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.