Finding the Fourth Proportional to 863,028.42, 1,190,772.08 and 557,040
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Solution
The fourth proportional to 863,028.42, 1,190,772.08 and 557,040 is: 768,581.50
Step by Step Solution
- Step 1: Write the proportion equation
863,028.42 : 1,190,772.08 = 557,040 : x - Step 2: Convert to fraction form
863,028.42/1,190,772.08 = 557,040/x - Step 3: Cross multiply
863,028.42x = 1,190,772.08 × 557,040 - Step 4: Simplify right side
863,028.42x = 663,307,679,443.20 - Step 5: Solve for x
x = 663,307,679,443.20/863,028.42 - Step 6: Final answer
x = 768,581.50
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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.