Finding the Fourth Proportional to 698,364.19, 963,670.74 and 392,391.94
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Solution
The fourth proportional to 698,364.19, 963,670.74 and 392,391.94 is: 541,460.51
Step by Step Solution
- Step 1: Write the proportion equation
698,364.19 : 963,670.74 = 392,391.94 : x - Step 2: Convert to fraction form
698,364.19/963,670.74 = 392,391.94/x - Step 3: Cross multiply
698,364.19x = 963,670.74 × 392,391.94 - Step 4: Simplify right side
698,364.19x = 378,136,631,189.84 - Step 5: Solve for x
x = 378,136,631,189.84/698,364.19 - Step 6: Final answer
x = 541,460.51
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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.