Finding the Fourth Proportional to 859,407.36, 1,186,013.12 and 496,944.96
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Solution
The fourth proportional to 859,407.36, 1,186,013.12 and 496,944.96 is: 685,801.95
Step by Step Solution
- Step 1: Write the proportion equation
859,407.36 : 1,186,013.12 = 496,944.96 : x - Step 2: Convert to fraction form
859,407.36/1,186,013.12 = 496,944.96/x - Step 3: Cross multiply
859,407.36x = 1,186,013.12 × 496,944.96 - Step 4: Simplify right side
859,407.36x = 589,383,242,477.88 - Step 5: Solve for x
x = 589,383,242,477.88/859,407.36 - Step 6: Final answer
x = 685,801.95
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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.