Finding the Fourth Proportional to 786,130.74, 1,084,864.08 and 446,617.62
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Solution
The fourth proportional to 786,130.74, 1,084,864.08 and 446,617.62 is: 616,334.39
Step by Step Solution
- Step 1: Write the proportion equation
786,130.74 : 1,084,864.08 = 446,617.62 : x - Step 2: Convert to fraction form
786,130.74/1,084,864.08 = 446,617.62/x - Step 3: Cross multiply
786,130.74x = 1,084,864.08 × 446,617.62 - Step 4: Simplify right side
786,130.74x = 484,519,413,433.09 - Step 5: Solve for x
x = 484,519,413,433.09/786,130.74 - Step 6: Final answer
x = 616,334.39
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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.