Finding the Fourth Proportional to 539,491.54, 744,387.18 and 310,004.49
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Solution
The fourth proportional to 539,491.54, 744,387.18 and 310,004.49 is: 427,742.33
Step by Step Solution
- Step 1: Write the proportion equation
539,491.54 : 744,387.18 = 310,004.49 : x - Step 2: Convert to fraction form
539,491.54/744,387.18 = 310,004.49/x - Step 3: Cross multiply
539,491.54x = 744,387.18 × 310,004.49 - Step 4: Simplify right side
539,491.54x = 230,763,368,098.44 - Step 5: Solve for x
x = 230,763,368,098.44/539,491.54 - Step 6: Final answer
x = 427,742.33
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1.5x scale
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.