Finding the Fourth Proportional to 855,918.90, 1,181,168 and 473,945.68
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Solution
The fourth proportional to 855,918.90, 1,181,168 and 473,945.68 is: 654,044.99
Step by Step Solution
- Step 1: Write the proportion equation
855,918.90 : 1,181,168 = 473,945.68 : x - Step 2: Convert to fraction form
855,918.90/1,181,168 = 473,945.68/x - Step 3: Cross multiply
855,918.90x = 1,181,168 × 473,945.68 - Step 4: Simplify right side
855,918.90x = 559,809,470,954.24 - Step 5: Solve for x
x = 559,809,470,954.24/855,918.90 - Step 6: Final answer
x = 654,044.99
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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.