Finding the Fourth Proportional to 719,295.42, 1,079,120.70 and 213,854.20
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Solution
The fourth proportional to 719,295.42, 1,079,120.70 and 213,854.20 is: 320,834.10
Step by Step Solution
- Step 1: Write the proportion equation
719,295.42 : 1,079,120.70 = 213,854.20 : x - Step 2: Convert to fraction form
719,295.42/1,079,120.70 = 213,854.20/x - Step 3: Cross multiply
719,295.42x = 1,079,120.70 × 213,854.20 - Step 4: Simplify right side
719,295.42x = 230,774,494,940.63 - Step 5: Solve for x
x = 230,774,494,940.63/719,295.42 - Step 6: Final answer
x = 320,834.10
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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.