Finding the Fourth Proportional to 742,887.03, 1,025,173.58 and 420,588.75
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Solution
The fourth proportional to 742,887.03, 1,025,173.58 and 420,588.75 is: 580,406.52
Step by Step Solution
- Step 1: Write the proportion equation
742,887.03 : 1,025,173.58 = 420,588.75 : x - Step 2: Convert to fraction form
742,887.03/1,025,173.58 = 420,588.75/x - Step 3: Cross multiply
742,887.03x = 1,025,173.58 × 420,588.75 - Step 4: Simplify right side
742,887.03x = 431,176,470,930.82 - Step 5: Solve for x
x = 431,176,470,930.82/742,887.03 - Step 6: Final answer
x = 580,406.52
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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.