Finding the Fourth Proportional to 879,985.62, 1,319,978.43 and 459,163.08
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Solution
The fourth proportional to 879,985.62, 1,319,978.43 and 459,163.08 is: 688,744.62
Step by Step Solution
- Step 1: Write the proportion equation
879,985.62 : 1,319,978.43 = 459,163.08 : x - Step 2: Convert to fraction form
879,985.62/1,319,978.43 = 459,163.08/x - Step 3: Cross multiply
879,985.62x = 1,319,978.43 × 459,163.08 - Step 4: Simplify right side
879,985.62x = 606,085,361,452.36 - Step 5: Solve for x
x = 606,085,361,452.36/879,985.62 - Step 6: Final answer
x = 688,744.62
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.