Finding the Fourth Proportional to 770,987.48, 1,155,816.12 and 371,078.12
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Solution
The fourth proportional to 770,987.48, 1,155,816.12 and 371,078.12 is: 556,297.07
Step by Step Solution
- Step 1: Write the proportion equation
770,987.48 : 1,155,816.12 = 371,078.12 : x - Step 2: Convert to fraction form
770,987.48/1,155,816.12 = 371,078.12/x - Step 3: Cross multiply
770,987.48x = 1,155,816.12 × 371,078.12 - Step 4: Simplify right side
770,987.48x = 428,898,072,875.29 - Step 5: Solve for x
x = 428,898,072,875.29/770,987.48 - Step 6: Final answer
x = 556,297.07
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.