Finding the Fourth Proportional to 438,820.32, 605,583.99 and 247,862.10
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Solution
The fourth proportional to 438,820.32, 605,583.99 and 247,862.10 is: 342,056.45
Step by Step Solution
- Step 1: Write the proportion equation
438,820.32 : 605,583.99 = 247,862.10 : x - Step 2: Convert to fraction form
438,820.32/605,583.99 = 247,862.10/x - Step 3: Cross multiply
438,820.32x = 605,583.99 × 247,862.10 - Step 4: Simplify right side
438,820.32x = 150,101,319,487.78 - Step 5: Solve for x
x = 150,101,319,487.78/438,820.32 - Step 6: Final answer
x = 342,056.45
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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.