Finding the Fourth Proportional to 930,178.80, 1,395,268.20 and 867,193.20
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Solution
The fourth proportional to 930,178.80, 1,395,268.20 and 867,193.20 is: 1,300,789.80
Step by Step Solution
- Step 1: Write the proportion equation
930,178.80 : 1,395,268.20 = 867,193.20 : x - Step 2: Convert to fraction form
930,178.80/1,395,268.20 = 867,193.20/x - Step 3: Cross multiply
930,178.80x = 1,395,268.20 × 867,193.20 - Step 4: Simplify right side
930,178.80x = 1,209,967,095,216.24 - Step 5: Solve for x
x = 1,209,967,095,216.24/930,178.80 - Step 6: Final answer
x = 1,300,789.80
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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.