Finding the Fourth Proportional to 719,378.10, 1,079,066.88 and 213,937.02
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Solution
The fourth proportional to 719,378.10, 1,079,066.88 and 213,937.02 is: 320,905.45
Step by Step Solution
- Step 1: Write the proportion equation
719,378.10 : 1,079,066.88 = 213,937.02 : x - Step 2: Convert to fraction form
719,378.10/1,079,066.88 = 213,937.02/x - Step 3: Cross multiply
719,378.10x = 1,079,066.88 × 213,937.02 - Step 4: Simplify right side
719,378.10x = 230,852,352,687.90 - Step 5: Solve for x
x = 230,852,352,687.90/719,378.10 - Step 6: Final answer
x = 320,905.45
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1.5x scale
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.