Finding the Fourth Proportional to 742,806.11, 1,025,072.42 and 403,274.36
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Solution
The fourth proportional to 742,806.11, 1,025,072.42 and 403,274.36 is: 556,518.60
Step by Step Solution
- Step 1: Write the proportion equation
742,806.11 : 1,025,072.42 = 403,274.36 : x - Step 2: Convert to fraction form
742,806.11/1,025,072.42 = 403,274.36/x - Step 3: Cross multiply
742,806.11x = 1,025,072.42 × 403,274.36 - Step 4: Simplify right side
742,806.11x = 413,385,416,987.42 - Step 5: Solve for x
x = 413,385,416,987.42/742,806.11 - Step 6: Final answer
x = 556,518.60
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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.