Finding the Fourth Proportional to 930,186.80, 1,395,280.20 and 867,201.20
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Solution
The fourth proportional to 930,186.80, 1,395,280.20 and 867,201.20 is: 1,300,801.80
Step by Step Solution
- Step 1: Write the proportion equation
930,186.80 : 1,395,280.20 = 867,201.20 : x - Step 2: Convert to fraction form
930,186.80/1,395,280.20 = 867,201.20/x - Step 3: Cross multiply
930,186.80x = 1,395,280.20 × 867,201.20 - Step 4: Simplify right side
930,186.80x = 1,209,988,663,776.24 - Step 5: Solve for x
x = 1,209,988,663,776.24/930,186.80 - Step 6: Final answer
x = 1,300,801.80
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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.