Finding the Fourth Proportional to 742,806.37, 1,025,072.76 and 403,274.62
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Solution
The fourth proportional to 742,806.37, 1,025,072.76 and 403,274.62 is: 556,518.96
Step by Step Solution
- Step 1: Write the proportion equation
742,806.37 : 1,025,072.76 = 403,274.62 : x - Step 2: Convert to fraction form
742,806.37/1,025,072.76 = 403,274.62/x - Step 3: Cross multiply
742,806.37x = 1,025,072.76 × 403,274.62 - Step 4: Simplify right side
742,806.37x = 413,385,827,761.35 - Step 5: Solve for x
x = 413,385,827,761.35/742,806.37 - Step 6: Final answer
x = 556,518.96
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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.