Finding the Fourth Proportional to 693,157.68, 1,039,835.68 and 213,426.08
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Solution
The fourth proportional to 693,157.68, 1,039,835.68 and 213,426.08 is: 320,169.65
Step by Step Solution
- Step 1: Write the proportion equation
693,157.68 : 1,039,835.68 = 213,426.08 : x - Step 2: Convert to fraction form
693,157.68/1,039,835.68 = 213,426.08/x - Step 3: Cross multiply
693,157.68x = 1,039,835.68 × 213,426.08 - Step 4: Simplify right side
693,157.68x = 221,928,053,026.53 - Step 5: Solve for x
x = 221,928,053,026.53/693,157.68 - Step 6: Final answer
x = 320,169.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.