Finding the Fourth Proportional to 742,887.97, 1,025,189.49 and 403,356.22
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Solution
The fourth proportional to 742,887.97, 1,025,189.49 and 403,356.22 is: 556,633.81
Step by Step Solution
- Step 1: Write the proportion equation
742,887.97 : 1,025,189.49 = 403,356.22 : x - Step 2: Convert to fraction form
742,887.97/1,025,189.49 = 403,356.22/x - Step 3: Cross multiply
742,887.97x = 1,025,189.49 × 403,356.22 - Step 4: Simplify right side
742,887.97x = 413,516,562,186.43 - Step 5: Solve for x
x = 413,516,562,186.43/742,887.97 - Step 6: Final answer
x = 556,633.81
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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.