Finding the Fourth Proportional to 879,919.92, 1,214,289.45 and 477,511.92
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Solution
The fourth proportional to 879,919.92, 1,214,289.45 and 477,511.92 is: 658,966.43
Step by Step Solution
- Step 1: Write the proportion equation
879,919.92 : 1,214,289.45 = 477,511.92 : x - Step 2: Convert to fraction form
879,919.92/1,214,289.45 = 477,511.92/x - Step 3: Cross multiply
879,919.92x = 1,214,289.45 × 477,511.92 - Step 4: Simplify right side
879,919.92x = 579,837,686,705.24 - Step 5: Solve for x
x = 579,837,686,705.24/879,919.92 - Step 6: Final answer
x = 658,966.43
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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.