Finding the Fourth Proportional to 868,340.70, 1,302,741.45 and 307,316.70
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Solution
The fourth proportional to 868,340.70, 1,302,741.45 and 307,316.70 is: 461,056.59
Step by Step Solution
- Step 1: Write the proportion equation
868,340.70 : 1,302,741.45 = 307,316.70 : x - Step 2: Convert to fraction form
868,340.70/1,302,741.45 = 307,316.70/x - Step 3: Cross multiply
868,340.70x = 1,302,741.45 × 307,316.70 - Step 4: Simplify right side
868,340.70x = 400,354,203,367.22 - Step 5: Solve for x
x = 400,354,203,367.22/868,340.70 - Step 6: Final answer
x = 461,056.59
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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.