Finding the Fourth Proportional to 752,235.36, 1,128,356.88 and 253,603.68
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Solution
The fourth proportional to 752,235.36, 1,128,356.88 and 253,603.68 is: 380,406.81
Step by Step Solution
- Step 1: Write the proportion equation
752,235.36 : 1,128,356.88 = 253,603.68 : x - Step 2: Convert to fraction form
752,235.36/1,128,356.88 = 253,603.68/x - Step 3: Cross multiply
752,235.36x = 1,128,356.88 × 253,603.68 - Step 4: Simplify right side
752,235.36x = 286,155,457,121.32 - Step 5: Solve for x
x = 286,155,457,121.32/752,235.36 - Step 6: Final answer
x = 380,406.81
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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.