Finding the Fourth Proportional to 865,394.57, 1,194,237.97 and 478,236.10
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Solution
The fourth proportional to 865,394.57, 1,194,237.97 and 478,236.10 is: 659,962.21
Step by Step Solution
- Step 1: Write the proportion equation
865,394.57 : 1,194,237.97 = 478,236.10 : x - Step 2: Convert to fraction form
865,394.57/1,194,237.97 = 478,236.10/x - Step 3: Cross multiply
865,394.57x = 1,194,237.97 × 478,236.10 - Step 4: Simplify right side
865,394.57x = 571,127,709,244.72 - Step 5: Solve for x
x = 571,127,709,244.72/865,394.57 - Step 6: Final answer
x = 659,962.21
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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.