Finding the Fourth Proportional to 879,418.80, 1,319,128.20 and 524,833.20
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Solution
The fourth proportional to 879,418.80, 1,319,128.20 and 524,833.20 is: 787,249.80
Step by Step Solution
- Step 1: Write the proportion equation
879,418.80 : 1,319,128.20 = 524,833.20 : x - Step 2: Convert to fraction form
879,418.80/1,319,128.20 = 524,833.20/x - Step 3: Cross multiply
879,418.80x = 1,319,128.20 × 524,833.20 - Step 4: Simplify right side
879,418.80x = 692,322,274,416.24 - Step 5: Solve for x
x = 692,322,274,416.24/879,418.80 - Step 6: Final answer
x = 787,249.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.