Finding the Fourth Proportional to 752,438.48, 1,038,395.04 and 412,918.88
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Solution
The fourth proportional to 752,438.48, 1,038,395.04 and 412,918.88 is: 569,844.48
Step by Step Solution
- Step 1: Write the proportion equation
752,438.48 : 1,038,395.04 = 412,918.88 : x - Step 2: Convert to fraction form
752,438.48/1,038,395.04 = 412,918.88/x - Step 3: Cross multiply
752,438.48x = 1,038,395.04 × 412,918.88 - Step 4: Simplify right side
752,438.48x = 428,772,916,914.36 - Step 5: Solve for x
x = 428,772,916,914.36/752,438.48 - Step 6: Final answer
x = 569,844.48
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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.